函数参考


_WinAPI_SetBkColor

设置当前背景色为指定的颜色值

#Include <WinAPI.au3>
_WinAPI_SetBkColor($hDC, $iColor)

参数

$hDC 设备环境句柄
$iColor 指定新的背景颜色

返回值

成功: 返回以前的背景颜色
失败: 返回 -1

注意/说明

None.

相关

详情参考

在MSDN中搜索


示例/演示


#include <WinAPI.au3>
#include <WindowsConstants.au3>
#include <FontConstants.au3>

Global $tRECT, $hFont, $hOldFont, $hDC

HotKeySet("{ESC}", "_Exit")

$tRECT = DllStructCreate($tagRect)
DllStructSetData($tRECT, "Left", 5)
DllStructSetData($tRECT, "Top", 5)
DllStructSetData($tRECT, "Right", 250)
DllStructSetData($tRECT, "Bottom", 50)

$hDC = _WinAPI_GetDC(0)
$hFont = _WinAPI_CreateFont(50, 0, 0, 0, 400, False, False, False, $DEFAULT_CHARSET, _
        $OUT_DEFAULT_PRECIS, $CLIP_DEFAULT_PRECIS, $DEFAULT_QUALITY, 0, 'Arial')
$hOldFont = _WinAPI_SelectObject($hDC, $hFont)

_WinAPI_SetTextColor($hDC, 0x0000FF)
_WinAPI_SetBkColor($hDC, 0x000000)
; 注释下一行可以获得黑色背景而不是透明背景
_WinAPI_SetBkMode($hDC, $TRANSPARENT)

While 1
    _WinAPI_DrawText($hDC, "Hello world!", $tRECT, $DT_CENTER)
    Sleep(100)
WEnd

Func _Exit()
    _WinAPI_SelectObject($hDC, $hOldFont)
    _WinAPI_DeleteObject($hFont)
    _WinAPI_ReleaseDC(0, $hDC)
    _WinAPI_InvalidateRect(0, 0)
    $tRECT = 0
    Exit
EndFunc   ;==>_Exit