forked from openlp/openlp
Attempt to fix a few PPTVIEWLIB timing issues
bzr-revno: 87
This commit is contained in:
Jonathan Corwin
parent
588133aba0
commit
d81d037f2b
@ -70,9 +70,9 @@ BOOL APIENTRY DllMain( HMODULE hModule,
|
||||
}
|
||||
DllExport void SetDebug(BOOL onoff)
|
||||
{
|
||||
printf("SetDebug");
|
||||
printf("SetDebug\n");
|
||||
debug = onoff;
|
||||
DEBUG("enabled");
|
||||
DEBUG("enabled\n");
|
||||
}
|
||||
|
||||
// Open the PointPoint, count the slides and take a snapshot of each slide
|
||||
@ -169,27 +169,48 @@ DllExport int OpenPPT(char *filename, HWND hParentWnd, RECT rect, char *previewp
|
||||
ClosePPT(id);
|
||||
return -1;
|
||||
}
|
||||
while(pptviewobj[id].state==PPT_STARTED)
|
||||
Sleep(10);
|
||||
if(gotinfo)
|
||||
{
|
||||
DEBUG("OpenPPT: Info loaded, no refresh\n");
|
||||
pptviewobj[id].state = PPT_LOADED;
|
||||
Resume(id);
|
||||
}
|
||||
else
|
||||
{
|
||||
//Resume(id);
|
||||
DEBUG("OpenPPT: Get info\n");
|
||||
pptviewobj[id].steps = 0;
|
||||
int steps = 0;
|
||||
while(pptviewobj[id].state!=PPT_LOADED&&pptviewobj[id].state!=PPT_CLOSED)
|
||||
{
|
||||
if(steps<=pptviewobj[id].steps)
|
||||
{
|
||||
Sleep(100);
|
||||
DEBUG("OpenPPT: Step %d/%d\n",steps,pptviewobj[id].steps);
|
||||
steps++;
|
||||
NextStep(id);
|
||||
Sleep(100); // need to be careful not to be too quick, otherwise step to far and close show
|
||||
}
|
||||
Sleep(10);
|
||||
}
|
||||
DEBUG("OpenPPT: Steps %d, first slide steps %d\n",pptviewobj[id].steps,pptviewobj[id].firstSlideSteps);
|
||||
SavePPTInfo(id);
|
||||
RestartShow(id);
|
||||
}
|
||||
//InvalidateRect(pptviewobj[id].hWnd, NULL, TRUE);
|
||||
if(pptviewobj[id].mhook!=NULL)
|
||||
UnhookWindowsHookEx(pptviewobj[id].mhook);
|
||||
pptviewobj[id].mhook = NULL;
|
||||
DEBUG("OpenPPT: Exit: id=%i\n", id);
|
||||
return id;
|
||||
}
|
||||
// Load information about the ppt from an info.txt file.
|
||||
// Format:
|
||||
// version
|
||||
// filedate
|
||||
// filesize
|
||||
// slidecount
|
||||
// first slide steps
|
||||
BOOL GetPPTInfo(int id)
|
||||
{
|
||||
struct _stat filestats;
|
||||
@ -203,7 +224,11 @@ BOOL GetPPTInfo(int id)
|
||||
sprintf_s(info, MAX_PATH, "%sinfo.txt", pptviewobj[id].previewpath);
|
||||
int err = fopen_s(&pFile, info, "r");
|
||||
if(err!=0)
|
||||
{
|
||||
DEBUG("GetPPTInfo: file open failed - %d\n", err);
|
||||
return FALSE;
|
||||
}
|
||||
fgets(buf, 100, pFile); // version == 1
|
||||
fgets(buf, 100, pFile);
|
||||
if(filestats.st_mtime!=atoi(buf))
|
||||
{
|
||||
@ -218,6 +243,8 @@ BOOL GetPPTInfo(int id)
|
||||
}
|
||||
fgets(buf, 100, pFile); // slidecount
|
||||
int slidecount = atoi(buf);
|
||||
fgets(buf, 100, pFile); // first slide steps
|
||||
int firstslidesteps = atoi(buf);
|
||||
// check all the preview images still exist
|
||||
for(int i = 1; i<=slidecount; i++)
|
||||
{
|
||||
@ -225,7 +252,9 @@ BOOL GetPPTInfo(int id)
|
||||
if(GetFileAttributes(info)==INVALID_FILE_ATTRIBUTES)
|
||||
return FALSE;
|
||||
}
|
||||
fclose(pFile);
|
||||
pptviewobj[id].slideCount = slidecount;
|
||||
pptviewobj[id].firstSlideSteps = firstslidesteps;
|
||||
DEBUG("GetPPTInfo: exit ok\n");
|
||||
return TRUE;
|
||||
}
|
||||
@ -249,8 +278,11 @@ BOOL SavePPTInfo(int id)
|
||||
DEBUG("SavePPTInfo: fopen of %s failed%i\n", info, err);
|
||||
return FALSE;
|
||||
}
|
||||
DEBUG("%u\n%u\n%u\n", filestats.st_mtime, filestats.st_size, pptviewobj[id].slideCount);
|
||||
fprintf(pFile, "%u\n%u\n%u\n", filestats.st_mtime, filestats.st_size, pptviewobj[id].slideCount);
|
||||
fprintf(pFile, "1\n");
|
||||
fprintf(pFile, "%u\n", filestats.st_mtime);
|
||||
fprintf(pFile, "%u\n", filestats.st_size);
|
||||
fprintf(pFile, "%u\n", pptviewobj[id].slideCount);
|
||||
fprintf(pFile, "%u\n", pptviewobj[id].firstSlideSteps);
|
||||
fclose (pFile);
|
||||
DEBUG("SavePPTInfo: exit ok\n");
|
||||
return TRUE;
|
||||
@ -283,7 +315,10 @@ void Unhook(int id)
|
||||
DEBUG("Unhook: start\n");
|
||||
if(pptviewobj[id].hook!=NULL)
|
||||
UnhookWindowsHookEx(pptviewobj[id].hook);
|
||||
if(pptviewobj[id].mhook!=NULL)
|
||||
UnhookWindowsHookEx(pptviewobj[id].mhook);
|
||||
pptviewobj[id].hook = NULL;
|
||||
pptviewobj[id].mhook = NULL;
|
||||
DEBUG("Unhook: exit ok\n");
|
||||
}
|
||||
|
||||
@ -345,14 +380,16 @@ DllExport int GetCurrentSlide(int id)
|
||||
DllExport void NextStep(int id)
|
||||
{
|
||||
DEBUG("NextStep:\n");
|
||||
PostMessage(pptviewobj[id].hWnd, WM_MOUSEWHEEL, MAKEWPARAM(0, -WHEEL_DELTA), 0);
|
||||
if(pptviewobj[id].currentSlide>pptviewobj[id].slideCount)
|
||||
return;
|
||||
PostMessage(pptviewobj[id].hWnd2, WM_MOUSEWHEEL, MAKEWPARAM(0, -WHEEL_DELTA), 0);
|
||||
}
|
||||
|
||||
// Take a step backwards through the show
|
||||
DllExport void PrevStep(int id)
|
||||
{
|
||||
DEBUG("PrevStep:\n");
|
||||
PostMessage(pptviewobj[id].hWnd, WM_MOUSEWHEEL, MAKEWPARAM(0, WHEEL_DELTA), 0);
|
||||
PostMessage(pptviewobj[id].hWnd2, WM_MOUSEWHEEL, MAKEWPARAM(0, WHEEL_DELTA), 0);
|
||||
}
|
||||
|
||||
// Blank the show (black screen)
|
||||
@ -365,29 +402,31 @@ DllExport void Blank(int id)
|
||||
DEBUG("Blank:\n");
|
||||
HWND h1 = GetForegroundWindow();
|
||||
HWND h2 = GetFocus();
|
||||
SetForegroundWindow(pptviewobj[id].hWnd2);
|
||||
SetFocus(pptviewobj[id].hWnd2);
|
||||
SetForegroundWindow(pptviewobj[id].hWnd);
|
||||
SetFocus(pptviewobj[id].hWnd);
|
||||
Sleep(50); // slight pause, otherwise event triggering this call may grab focus back!
|
||||
keybd_event((int)'A', 0, 0, 0);
|
||||
keybd_event((int)'A', 0, KEYEVENTF_KEYUP, 0);
|
||||
keybd_event((int)'B', 0, 0, 0);
|
||||
keybd_event((int)'B', 0, KEYEVENTF_KEYUP, 0);
|
||||
SetForegroundWindow(h1);
|
||||
SetFocus(h2);
|
||||
//SendMessage(pptviewobj[id].hWnd2, WM_KEYDOWN, 'A', 0);
|
||||
//SendMessage(pptviewobj[id].hWnd2, WM_CHAR, 'A', 0);
|
||||
//SendMessage(pptviewobj[id].hWnd2, WM_KEYUP, 'A', 0);
|
||||
//SendMessage(pptviewobj[id].hWnd2, WM_KEYDOWN, 'B', 0);
|
||||
//SendMessage(pptviewobj[id].hWnd2, WM_CHAR, 'B', 0);
|
||||
//SendMessage(pptviewobj[id].hWnd2, WM_KEYUP, 'B', 0);
|
||||
//PostMessage(pptviewobj[id].hWnd2, WM_KEYDOWN, 'B', 0x00300001);
|
||||
//PostMessage(pptviewobj[id].hWnd2, WM_CHAR, 'b', 0x00300001);
|
||||
//PostMessage(pptviewobj[id].hWnd2, WM_KEYUP, 'B', 0xC0300001);
|
||||
}
|
||||
// Unblank the show
|
||||
DllExport void Unblank(int id)
|
||||
{
|
||||
DEBUG("Unblank:\n");
|
||||
// Pressing any key resumes.
|
||||
SendMessage(pptviewobj[id].hWnd2, WM_KEYDOWN, 'A', 0);
|
||||
// For some reason SendMessage works for unblanking, but not blanking.
|
||||
// SendMessage(pptviewobj[id].hWnd2, WM_KEYDOWN, 'A', 0);
|
||||
SendMessage(pptviewobj[id].hWnd2, WM_CHAR, 'A', 0);
|
||||
SendMessage(pptviewobj[id].hWnd2, WM_KEYUP, 'A', 0);
|
||||
// SendMessage(pptviewobj[id].hWnd2, WM_KEYUP, 'A', 0);
|
||||
// HWND h1 = GetForegroundWindow();
|
||||
// HWND h2 = GetFocus();
|
||||
// Sleep(50); // slight pause, otherwise event triggering this call may grab focus back!
|
||||
// SetForegroundWindow(pptviewobj[id].hWnd);
|
||||
// SetFocus(pptviewobj[id].hWnd);
|
||||
// keybd_event((int)'A', 0, 0, 0);
|
||||
@ -411,12 +450,15 @@ DllExport void GotoSlide(int id, int slideno)
|
||||
HWND h2 = GetFocus();
|
||||
SetForegroundWindow(pptviewobj[id].hWnd);
|
||||
SetFocus(pptviewobj[id].hWnd);
|
||||
Sleep(50); // slight pause, otherwise event triggering this call may grab focus back!
|
||||
for(int i=0;i<10;i++)
|
||||
{
|
||||
if(ch[i]=='\0') break;
|
||||
keybd_event((BYTE)ch[i], 0, 0, 0);
|
||||
keybd_event((BYTE)ch[i], 0, KEYEVENTF_KEYUP, 0);
|
||||
}
|
||||
keybd_event(VK_RETURN, 0, 0, 0);
|
||||
keybd_event(VK_RETURN, 0, KEYEVENTF_KEYUP, 0);
|
||||
SetForegroundWindow(h1);
|
||||
SetFocus(h2);
|
||||
|
||||
@ -452,6 +494,7 @@ DllExport void RestartShow(int id)
|
||||
for(int i=0;i<=pptviewobj[id].firstSlideSteps;i++)
|
||||
{
|
||||
PrevStep(id);
|
||||
Sleep(10);
|
||||
}
|
||||
Resume(id);
|
||||
}
|
||||
@ -501,8 +544,10 @@ LRESULT CALLBACK CbtProc(int nCode, WPARAM wParam, LPARAM lParam)
|
||||
{
|
||||
UnhookWindowsHookEx(globalhook);
|
||||
globalhook=NULL;
|
||||
pptviewobj[id].state = PPT_OPENED;
|
||||
pptviewobj[id].hook = SetWindowsHookEx(WH_CALLWNDPROC,CwpProc,hInstance,pptviewobj[id].dwThreadId);
|
||||
pptviewobj[id].mhook = SetWindowsHookEx(WH_GETMESSAGE,GetMsgProc,hInstance,pptviewobj[id].dwThreadId);
|
||||
Sleep(10);
|
||||
pptviewobj[id].state = PPT_OPENED;
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -510,6 +555,34 @@ LRESULT CALLBACK CbtProc(int nCode, WPARAM wParam, LPARAM lParam)
|
||||
return CallNextHookEx(hook,nCode,wParam,lParam);
|
||||
}
|
||||
|
||||
// This hook exists whilst the slideshow is loading but only listens on the
|
||||
// slideshows thread. It listens out for mousewheel events
|
||||
LRESULT CALLBACK GetMsgProc(int nCode, WPARAM wParam, LPARAM lParam)
|
||||
{
|
||||
HHOOK hook = NULL;
|
||||
MSG *pMSG = (MSG *)lParam;
|
||||
DWORD windowthread = GetWindowThreadProcessId(pMSG->hwnd,NULL);
|
||||
int id=-1;
|
||||
for(int i=0; i<MAX_PPTOBJS; i++)
|
||||
{
|
||||
if(pptviewobj[i].dwThreadId==windowthread)
|
||||
{
|
||||
id=i;
|
||||
hook = pptviewobj[id].mhook;
|
||||
break;
|
||||
}
|
||||
}
|
||||
if(id>=0&&nCode==HC_ACTION&&wParam==PM_REMOVE&&pMSG->message==WM_MOUSEWHEEL)
|
||||
{
|
||||
if(pptviewobj[id].state!=PPT_LOADED)
|
||||
{
|
||||
if(pptviewobj[id].currentSlide==1)
|
||||
pptviewobj[id].firstSlideSteps++;
|
||||
pptviewobj[id].steps++;
|
||||
}
|
||||
}
|
||||
return CallNextHookEx(hook, nCode, wParam, lParam);
|
||||
}
|
||||
// This hook exists whilst the slideshow is running but only listens on the
|
||||
// slideshows thread. It listens out for slide changes, message WM_USER+22.
|
||||
LRESULT CALLBACK CwpProc(int nCode, WPARAM wParam, LPARAM lParam){
|
||||
@ -533,13 +606,15 @@ LRESULT CALLBACK CwpProc(int nCode, WPARAM wParam, LPARAM lParam){
|
||||
{
|
||||
if(cwp->message==WM_USER+22)
|
||||
{
|
||||
if((pptviewobj[id].state != PPT_LOADED)
|
||||
&& (pptviewobj[id].currentSlide>0)
|
||||
if(pptviewobj[id].state != PPT_LOADED)
|
||||
{
|
||||
if((pptviewobj[id].currentSlide>0)
|
||||
&& (pptviewobj[id].previewpath!=NULL&&strlen(pptviewobj[id].previewpath)>0))
|
||||
{
|
||||
sprintf_s(filename, MAX_PATH, "%s%i.bmp", pptviewobj[id].previewpath, pptviewobj[id].currentSlide);
|
||||
CaptureAndSaveWindow(cwp->hwnd, filename);
|
||||
}
|
||||
}
|
||||
if(cwp->wParam==0)
|
||||
{
|
||||
if(pptviewobj[id].currentSlide>0)
|
||||
@ -550,8 +625,6 @@ LRESULT CALLBACK CwpProc(int nCode, WPARAM wParam, LPARAM lParam){
|
||||
}
|
||||
else
|
||||
{
|
||||
if((pptviewobj[id].state != PPT_LOADED)&&cwp->wParam==256)
|
||||
pptviewobj[id].firstSlideSteps++;
|
||||
pptviewobj[id].currentSlide = cwp->wParam - 255;
|
||||
if(pptviewobj[id].currentSlide>pptviewobj[id].slideCount)
|
||||
pptviewobj[id].slideCount = pptviewobj[id].currentSlide;
|
||||
@ -634,6 +707,9 @@ HBITMAP CaptureWindow (HWND hWnd) {
|
||||
{
|
||||
hDCBmp = (HBITMAP) SelectObject (hMemDC, hImage);
|
||||
HMODULE hLib = LoadLibrary("User32");
|
||||
// PrintWindow works for windows outside displayable area
|
||||
// but was only introduced in WinXP. BitBlt requires the window to be topmost
|
||||
// and within the viewable area of the display
|
||||
if(GetProcAddress(hLib, "PrintWindow")==NULL)
|
||||
{
|
||||
SetWindowPos(hWnd, HWND_TOPMOST, 0, 0, 0, 0, SWP_NOSIZE);
|
||||
|
||||
Binary file not shown.
@ -19,6 +19,7 @@ DllExport void SetDebug(BOOL onoff);
|
||||
|
||||
LRESULT CALLBACK CbtProc(int nCode, WPARAM wParam, LPARAM lParam);
|
||||
LRESULT CALLBACK CwpProc(int nCode, WPARAM wParam, LPARAM lParam);
|
||||
LRESULT CALLBACK GetMsgProc(int nCode, WPARAM wParam, LPARAM lParam);
|
||||
BOOL GetPPTViewerPath(char *pptviewerpath, int strsize);
|
||||
HBITMAP CaptureWindow (HWND hWnd);
|
||||
VOID SaveBitmap (CHAR* filename, HBITMAP hBmp) ;
|
||||
@ -34,6 +35,7 @@ void Unhook(int id);
|
||||
struct PPTVIEWOBJ
|
||||
{
|
||||
HHOOK hook;
|
||||
HHOOK mhook;
|
||||
HWND hWnd;
|
||||
HWND hWnd2;
|
||||
HWND hParentWnd;
|
||||
@ -45,6 +47,7 @@ struct PPTVIEWOBJ
|
||||
int slideCount;
|
||||
int currentSlide;
|
||||
int firstSlideSteps;
|
||||
int steps;
|
||||
char filename[MAX_PATH];
|
||||
char previewpath[MAX_PATH];
|
||||
PPTVIEWSTATE state;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user