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PNG Question

4 posts in this topic

Hi,

Guys, I'm a bit sutck in here. I have read the other png topics, and I understand how the drawing of png works. However, maybe I got something wrong, but I would like to draw 2 different PNGs on one GUI - window.

Here is my code:

#include <GUIConstantsEx.au3>

#include <WindowsConstants.au3>

#include <EditConstants.au3>

#include <ButtonConstants.au3>

#include <GDIPlus.au3>

#Include <WinAPI.au3>

Global $hImage, $hGraphic, $hImage1

$gui = GUICreate("test", 1024, 768, -1, -1)

_GDIPlus_StartUp()

$hImage = _GDIPlus_ImageLoadFromFile("Graph\button_ok.png")

$hImage2 = _GDIPlus_ImageLoadFromFile("Graph\button_cancel.png")

$hGraphic = _GDIPlus_GraphicsCreateFromHWND($gui)

$hGraphic2 = _GDIPlus_GraphicsCreateFromHWND($gui)

GUIRegisterMsg($WM_PAINT, "yestick")

GUIRegisterMsg($WM_PAINT, "nocross")

Func yestick($hWnd, $Msg, $wParam, $lParam)

_WinAPI_RedrawWindow($gui, 0, 0, $RDW_UPDATENOW)

_GDIPlus_GraphicsDrawImageRect($hGraphic, $hImage, 700, 153,16,16)

Return $GUI_RUNDEFMSG

EndFunc

Func nocross($hWnd, $Msg, $wParam, $lParam)

_WinAPI_RedrawWindow($gui, 0, 0, $RDW_UPDATENOW)

_GDIPlus_GraphicsDrawImageRect($hGraphic2, $hImage2, 780, 153,16,16)

Return $GUI_RUNDEFMSG

EndFunc

GUISetState()

Unfortunately, only nocross gets drawn "yestick" does not. Maybe I switched the orders, but just cannot find the problem.

Appreciate any help!

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Hi,

Guys, I'm a bit sutck in here. I have read the other png topics, and I understand how the drawing of png works. However, maybe I got something wrong, but I would like to draw 2 different PNGs on one GUI - window.

Here is my code:

#include <GUIConstantsEx.au3>

#include <WindowsConstants.au3>

#include <EditConstants.au3>

#include <ButtonConstants.au3>

#include <GDIPlus.au3>

#Include <WinAPI.au3>

Global $hImage, $hGraphic, $hImage1

$gui = GUICreate("test", 1024, 768, -1, -1)

_GDIPlus_StartUp()

$hImage = _GDIPlus_ImageLoadFromFile("Graph\button_ok.png")

$hImage2 = _GDIPlus_ImageLoadFromFile("Graph\button_cancel.png")

$hGraphic = _GDIPlus_GraphicsCreateFromHWND($gui)

$hGraphic2 = _GDIPlus_GraphicsCreateFromHWND($gui)

GUIRegisterMsg($WM_PAINT, "yestick")

GUIRegisterMsg($WM_PAINT, "nocross")

Func yestick($hWnd, $Msg, $wParam, $lParam)

_WinAPI_RedrawWindow($gui, 0, 0, $RDW_UPDATENOW)

_GDIPlus_GraphicsDrawImageRect($hGraphic, $hImage, 700, 153,16,16)

Return $GUI_RUNDEFMSG

EndFunc

Func nocross($hWnd, $Msg, $wParam, $lParam)

_WinAPI_RedrawWindow($gui, 0, 0, $RDW_UPDATENOW)

_GDIPlus_GraphicsDrawImageRect($hGraphic2, $hImage2, 780, 153,16,16)

Return $GUI_RUNDEFMSG

EndFunc

GUISetState()

Unfortunately, only nocross gets drawn "yestick" does not. Maybe I switched the orders, but just cannot find the problem.

Appreciate any help!

GUIRegisterMsg($WM_PAINT, "yestick")
GUIRegisterMsg($WM_PAINT, "nocross")

Considered that nocross is the only one being updated because it is the last one to be registered against WM_PAINT and hence the only one? Kinda like $i=2 and then $i=5 implies that $i will carry only the value 5 and have no traces of the constant 2 anymore...

A possible solution would be to combine nocross and yestick into a single function and register that against WM_PAINT...

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GUIRegisterMsg($WM_PAINT, "yestick")
GUIRegisterMsg($WM_PAINT, "nocross")

Considered that nocross is the only one being updated because it is the last one to be registered against WM_PAINT and hence the only one? Kinda like $i=2 and then $i=5 implies that $i will carry only the value 5 and have no traces of the constant 2 anymore...

A possible solution would be to combine nocross and yestick into a single function and register that against WM_PAINT...

Many thanks John, this solution works fine.

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Example:

#include <GUIConstantsEx.au3>
#include <WindowsConstants.au3>
#include <EditConstants.au3>
#include <ButtonConstants.au3>
#include <GDIPlus.au3>
#include <WinAPI.au3>

Global $hImage, $hGraphic, $hImage1

$hGUI = GUICreate("test", 400, 300, -1, -1)

_GDIPlus_Startup()

$hImage = _GDIPlus_ImageLoadFromFile("c:\test.png")
$hImage2 = _GDIPlus_ImageLoadFromFile("c:\Test2.png")

$hGraphic = _GDIPlus_GraphicsCreateFromHWND($hGUI)

GUIRegisterMsg($WM_PAINT, "WM_PAINT")

GUISetState()

Do
Until GUIGetMsg() = -3

_GDIPlus_ImageDispose($hImage)
_GDIPlus_GraphicsDispose($hGraphic)
_GDIPlus_Shutdown()

; Draw PNG image
Func WM_PAINT($hWnd, $Msg, $wParam, $lParam)
    _WinAPI_RedrawWindow($hGUI, 0, 0, $RDW_UPDATENOW)
    _GDIPlus_GraphicsDrawImage($hGraphic, $hImage, 0, 0)
    _GDIPlus_GraphicsDrawImage($hGraphic, $hImage2, 100, 100)
    _WinAPI_RedrawWindow($hGUI, 0, 0, $RDW_VALIDATE)
    Return $GUI_RUNDEFMSG
EndFunc

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