Help with _WinAPI_Draw

[Terenz]

Hi all

I want to draw 2 line and 2 text on the desktop, and move the position based on the value of the input

This is what i have done:

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

Local $hDC, $hPen, $obj_orig

$Form1_1 = GUICreate("Form1", 201, 126, -1, -1)
$Input1 = GUICtrlCreateInput("20", 16, 24, 121, 21)
$Input2 = GUICtrlCreateInput("20", 16, 64, 121, 21)
$Button1 = GUICtrlCreateButton("1", 144, 24, 43, 25)
$Button2 = GUICtrlCreateButton("2", 146, 65, 43, 25)
GUISetState(@SW_SHOW)

$tRECT_X = DllStructCreate($tagRect)
DllStructSetData($tRECT_X, "Left", @DesktopWidth / 2)
DllStructSetData($tRECT_X, "Top", 25)
DllStructSetData($tRECT_X, "Right", 55)
DllStructSetData($tRECT_X, "Bottom", 40)

$tRECT_Y = DllStructCreate($tagRect)
DllStructSetData($tRECT_Y, "Left", 20)
DllStructSetData($tRECT_Y, "Top", @DesktopHeight / 4)
DllStructSetData($tRECT_Y, "Right", 55)
DllStructSetData($tRECT_Y, "Bottom", @DesktopHeight / 3)

$hDC = _WinAPI_GetWindowDC(0) ; DC of entire screen (desktop)
$hPen = _WinAPI_CreatePen($PS_SOLID, 3, 0x0000FF)
$obj_orig = _WinAPI_SelectObject($hDC, $hPen)

_WinAPI_DrawLine($hDC, 20, 20, 20, @DesktopHeight / 3)
_WinAPI_DrawLine($hDC, 20, 20, @DesktopWidth / 3, 20)
_WinAPI_SetBkMode($hDC, $TRANSPARENT)
_WinAPI_SetTextColor($hDC, 0x0000FF)
_WinAPI_DrawText($hDC, "X", $tRECT_X, $DT_CENTER)
_WinAPI_DrawText($hDC, "Y", $tRECT_Y, $DT_CENTER)

While 1
    $nMsg = GUIGetMsg()
    Switch $nMsg
        Case $GUI_EVENT_CLOSE
            ; refresh desktop
            _WinAPI_RedrawWindow(_WinAPI_GetDesktopWindow(), 0, 0, $RDW_INVALIDATE + $RDW_ALLCHILDREN)
            ; clear resources
            _WinAPI_SelectObject($hDC, $obj_orig)
            _WinAPI_DeleteObject($hPen)
            _WinAPI_ReleaseDC(0, $hDC)
            Exit
        Case $Button1
    EndSwitch
WEnd

My problem is are i don't know how to move the lines and text based the position of the desktop size

Example:

If input1 is 50 the vertical line goes to 50px from the left, and move the also text

If input2 is 50 the horizontal line goes to 50px from the top, and move the also text

And make everything based on desktop size, now i don't think my "math" is correct

Thanks for any help

Edited May 30, 2013 by Terenz