I want to draw a HBITMAP onto HDC,
I used StretchDIBits. It works fine.
::StretchDIBits.
however, I only want a window to watch the drawing result, beside the window, I wish the stretchDIBits do not take any effect(It can not draw on other area), how can I do this?
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I am now writing a image viewer, It is used for view thumbnails.
As it is ugly, I decide to draw shadow round thumbnail.
There is background color.
I am using StretchDIBits to draw a shadow image at the location of thumbnail.
However it is really annoying that it cover the background color...
When the background is white, it looks perfe...
I want to draw a dib on to a HDC, the same size.
I am using :
des and src are of the same size.
::StretchDIBits(hdc,
des.left,des.top,des.right - des.left,des.bottom - des.top,
src.left, GetHeight() - src.bottom, src.right - src.left,src.bottom - src.top,
m_pImg->accessPixels(),m_pImg->getInfo(), DIB_RGB...
I am drawing bitmap images on graphics object using DrawImage method But the Images are in large number so it is taking too much time for Drawing. I have read in this forum that using StretchDIBits takes less time for Drawing.
I am scaling the image by calling Drawimage but i want any other efficent method.
I have a Vector of Bitmap* ...
I am using C++ GDI, StretchDIBits to draw images on DC.
Because the original Image is large, and high quality is needed.
I use HAFTONE mode, to draw whole image on DC(zoom the image) seems time comsuming.
So I decide to draw partially using StretchDIBits.
But there is a serious problem about StretchDIBits.
I can only draw rect in int...
I've never used DrawDib APIs,
My Application's UI rendering is based on stretchDIBits.
Because there are really lots of large images to draw , the stretchDIBits's (HAFTONE is used to get better render result) performace is bad...
I heard about DrawDib is a group of efficient APIs to draw DIBs to DC. Is it better than stretchDIBits?
Ca...
I am using gdi c++,
StretchDIBits function sometimes failed if I draw large Images such as 7000*5000.
It draw nothing. GetLastError() says no enough system resource.
Can anyone explain why StretchDIBits need resource even The DC is prepared successfully.
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