I\'d like to get more performance out of BitBlt for capturing the screen. When Aero remains enabled, capturing only a 400x400 pixel area of the screen reduces capture time from an average of 50ms (ful
I use following code to capture the screen with GDI functions: // Prologue: int iScreenWidth = GetSystemMetrics(SM_CXSCREEN);
I have used Visual Basic 6 in the past (LOONG ago), and it had a control called PictureBox where you could just draw stuff to, get a device context if you wanted, etc. I\'m now trying to find out how
I am trying to get a 500x500 screenshot from the 0x0 (top-left) position of screen and put it in a window.
I am trying to BitBlt from an HBITMAP to a GDI+ bitmap.I tried this, but nothing happens: Bitmap Buffer = New Bitmap(608, 3开发者_StackOverflow中文版92)
Right now I\'m using GetPixel() to retrieve about 64 pixels from the desktop in order to obtain their color. I read about GetPixel() being slow but didn\'t think it would matter for a few pixels but i
I want to create a crop function in an existing engine. This is what I already have: bool Bitmap::Crop(RECT cropArea)
What is开发者_JAVA技巧 the recommended method of copying one QImage into another at a particular position in Qt4?
I am using GDI+ to take window snapshot, the code is: CComBSTR bstrfname (fname); HDC hdc = CreateCompatibleDC (hDC);
BitBlt(meteor.main, 0, 0, meteor.img_width, meteor.img_height, meteor.image,meteor.mask_x, meteor.mask_y, SRCAND);
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