WinBeginPaint

This function is called (normally in a WM_PAINT message) to obtain presentation space for drawing in a specified window.

Syntax

hps = WinBeginPaint( hwnd, hps, prcl )

Parameters

HWND hwnd (input)

A window handle to where the drawing is going to occur.

HPS hps (input)

A handle to presentation space.

PRECTL prcl (input)

A pointer to the bounding rectangle. The value must be in the range of -32,767 through 32,767. A NULL value indicates no bounding rectangle (the whole window will be painted).

Returns

HPS hps

Handle to the newly created presentation space. NULLHANDLE is returned if there was an error. WinGetLastError will return one of:

0x1001	PMERR_INVALID_HWND
0x207F	PMERR_INV_HPS

Include Info

#define INCL_WINWINDOWMGR
#include <os2.h>

Sample Code

#define INCL_WINWINDOWMGR
#include 
   .
   .
   .
case WM_PAINT:
    hps = WinBeginPaint(hwnd, NULLHANDLE, NULL);

    WinQueryWindowRect(hwnd, &rcl);

    WinDrawText(hps, -1, "Hello World", &rcl, CLR_NEUTRAL, CLR_BACKGROUND,
                DT_CENTER | DT_VCENTER | DT_ERASERECT);

    WinEndPaint(hps);
    return 0;
   .
   .
   .

See Also

• WinEndPaint
• WinExcludeUpdateRegion
• WinGetClipPS
• WinGetPS
• WinGetScreenPS
• WinInvalidateRect
• WinInvalidateRegion
• WinIsWindowShowing
• WinIsWindowVisible
• WinLockVisRegions
• WinOpenWindowDC
• WinQueryUpdateRect
• WinQueryUpdateRegion
• WinRealizePalette
• WinReleasePS
• WinShowWindow
• WinUpdateWindow
• WinValidateRect
• WinValidateRegion