bitblt
How to increase performance over GDI's DrawImage(Unscaled)?
In my user control\'s paint handler I iterate over a collection of predefined Bitmap objects and draw them to the client area thusly:[详细]
2022-12-26 02:02 分类：问答How to clean up after myself when drawing directly to the screen
I\'m drawing directly to the screen using BitBlt and Ge开发者_开发技巧tDC(IntPtr.Zero).Is there some way to call Refresh or Invalidate on the whole screen when I\'m done, so that I don\'t leave big ch[详细]
2022-12-24 15:40 分类：问答Win32 window capture with BitBlt not displaying border
I have written some c++ code to capture a window to a .bmp file. BITMAPFILEHEADER get_bitmap_file_header(int width, int height)[详细]
2022-12-23 23:45 分类：问答Copy Small Bitmaps on to Large Bitmap with Transparency Blend: What is faster than graphics.DrawImage(smallBitmap, x , y)?
I have identified this call as a bottleneck in a high pressure function. graphics.DrawImage(smallBitmap, x , y);[详细]
2022-12-23 04:52 分类：问答BitBlt code not working
I\'m trying to use this code to draw a Bitmap directly onto a PictureBox: Bitmap bmp = (Bitmap)Bitmap.FromFile(@\"C:\\Users\\Ken\\Desktop\\Load2.bmp\");[详细]
2022-12-21 04:58 分类：问答How to use Win32's BitBlt using Ruby?
Does anyone know how to use Win32\'s BitBlt() using Ruby?It seems like you need to use a destination DC (device context) and how can Ruby handle that?I use GetPixel() and it is really slow even to get[详细]
2022-12-13 12:28 分类：问答Converting from HBITMAP to Jpeg or Png in C++
Does anyone know how I can use an HBITMAP variable to write a png or jpeg file? I first looked into doing this with GDI+ but it gives me errors telling me min/max h开发者_如何学运维aven\'t been defin[详细]
2022-12-08 12:04 分类：问答
![Interactive visualization of a graph in python [closed]](https://www.devze.com/res/2023/04-10/09/92d32fe8c0d22fb96bd6f6e8b7d1f457.gif)
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