I have a realtime OpenGL application rendering some objects with textures. I have build a function to make an internal screenshot of the rendered scene by rendering it to an DIB via PFD_DRAW_TO_BITMAP and copy it to an image. It works quite well…
I am programming in windows c++.
I want to know which is the fasted method to draw a DIB onto Screen.
The image maybe stretched.
Faster than StretchDIBits, Faster than SetDIBitsToDevice.
Faster than StretchBits.
and with high stretch quality.
Many…
I'm writing some code which takes a bitmap from an attached webcam, rotates it either 90, 180 or 270 degrees clockwise and displays it in a window.
The bitmap is originally supplied as a device independent bitmap. What is the most efficient series…
I am working on an API to cache GDI objects, written in C++, in which I am implementing different Create methods that imitate the win32 API. One such method is CreateDIBPatternBrushPt(), which takes in a VOID* to a packed DIB. The VOID* contains a…
from a third party component I am receiving a PBitmap which is a pointer to Windows.tagBitmap record.
{ Bitmap Header Definition }
PBitmap = ^TBitmap;
{$EXTERNALSYM tagBITMAP}
tagBITMAP = record
bmType: Longint;
bmWidth: Longint;
…