stretchdibits

how to set GDI HDC's drawable region?

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? ...

How to imitate shadow around the thumbnails by StretchDIBits?

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...

StretchDIBits seems slow, Is there any API faster?

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...

Drawing On GDI+ Graphics Object a Bitmap using StretchDIBits for Scaling

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* ...

Image shaking when StretchDIBits partially.

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...

DrawDib StretchDIBits which one is faster?

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...

StretchDIBits failed, sometimes it draw nothing,...

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. ...