Wrapper for commonly used Dll Call
#Include <misc.au3>
_SendMessage ( hWnd, msg [, wParam = 0 [, lParam = 0 [, return = 0 [, wParam Type = "int" [, lParam Type = "int" ]]]]] )
Parameters
| hwnd | window/control handle |
| msg | message to send to control (number) |
| wParam | Specifies additional message-specific information (Optional: Default 0) |
| lParam | Specifies additional message-specific information (Optional: Default 0) |
| return | what to return (Optional: Default 0) |
| wParam Type | Specifies what type of additional information (Optional: Default "int") |
| lParam Type | Specifies what type of additional information (Optional: Default "int") |
Return Value
| return = 0 thru 4 corresponds to the parameter of the _SendMessage Wrapper | |
| return < 0 or > 4 returns array same as DllCall |
Remarks
None
Related
DllCall
Example
#include <misc.au3>
_Main()
Func _Main()
Local Const $Off = 2, $On = -1
Opt("WinTitleMatchMode", 4)
$hwnd = WinGetHandle('classname=Progman')
_ToggleMonitor($hWnd, $Off)
Sleep ( 3000 )
_ToggleMonitor($hWnd, $On)
EndFunc
Func _ToggleMonitor($hwnd, $OnOff)
Local Const $WM_SYSCOMMAND = 274
Local Const $SC_MONITORPOWER = 61808
_SendMessage($hWnd, $WM_SYSCOMMAND, $SC_MONITORPOWER, $OnOff)
If @error Then
MsgBox(0,"_ToggleMonitor", "_SendMessage Error: " & @error)
Exit
EndIf
EndFunc