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The following functions are used with painting and drawing.
| Function | Description |
|---|---|
| BeginPaint | Prepares a window for painting. |
| DrawAnimatedRects | Draws a rectangle and animates it to indicate icon or window activity. |
| DrawCaption | Draws a window caption. |
| DrawEdge | Draws one or more edges of rectangle. |
| DrawFocusRect | Draws a rectangle in the style that indicates the rectangle has the focus. |
| DrawFrameControl | Draws a frame control. |
| DrawState | Displays an image and applies a visual effect to indicate a state. |
| DrawStateProc | A callback function that renders a complex image for DrawState. |
| EndPaint | Marks the end of painting in a window. |
| ExcludeUpdateRgn | Prevents drawing within invalid areas of a window. |
| GdiFlush | Flushes the calling thread's current batch. |
| GdiGetBatchLimit | Returns the maximum number of function calls that can be accumulated in the calling thread's current batch. |
| GdiSetBatchLimit | Sets the maximum number of function calls that can be accumulated in the calling thread's current batch. |
| GetBkColor | Returns the background color for a device context. |
| GetBkMode | Returns the background mix mode for a device context. |
| GetBoundsRect | Gets the accumulated bounding rectangle for a device context. |
| GetROP2 | Gets the foreground mix mode of a device context. |
| GetUpdateRect | Gets the coordinates of the smallest rectangle that encloses the update region of a window. |
| GetUpdateRgn | Gets the update region of a window. |
| GetWindowDC | Gets the device context for a window, including title bar, menus, and scroll bars. |
| GetWindowRgn | Gets a copy of the window region of a window. |
| GetWindowRgnBox | Gets the dimensions of the tightest bounding rectangle for the window region of a window. |
| GrayString | Draws gray text at a ___location. |
| InvalidateRect | Adds a rectangle to a window's update region. |
| InvalidateRgn | Invalidates the client area within a region. |
| LockWindowUpdate | Disables or enables drawing in a window. |
| OutputProc | A callback function used with the GrayString function. It is used to draw a string. |
| PaintDesktop | Fills the clipping region in a device context with a pattern. |
| RedrawWindow | Updates a region in a window's client area. |
| SetBkColor | Sets the background to a color value. |
| SetBkMode | Sets the background mix mode of a device context. |
| SetBoundsRect | Controls the accumulation of bounding rectangle information for a device context. |
| SetROP2 | Sets the foreground mix mode. |
| SetWindowRgn | Sets the window region of a window. |
| UpdateWindow | Updates the client area of a window. |
| ValidateRect | Validates the client area within a rectangle. |
| ValidateRgn | Validates the client area within a region. |
| WindowFromDC | Returns a handle to the window associated with a device context. |