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Hi Juan Rendón,jrendon wrote:Hi all
how create a window transparent
i see one example many years ago on version 1.xx of minigui, and now need this example.
Code: Select all
/*
* MINIGUI - Harbour Win32 GUI library Demo
*
* Copyright 2002-2009 Roberto Lopez <harbourminigui@gmail.com>
* http://harbourminigui.googlepages.com/
*/
#include "minigui.ch"
Function Main()
Local nTra := 128, hWnd
DEFINE WINDOW WinTR ;
AT 0,0 ;
WIDTH 300 ;
HEIGHT 300 ;
TITLE 'Transparent window' ;
MAIN ;
NOSIZE NOMAXIMIZE ;
ON INIT ( hWnd := GetFormHandle('WinTR'), SetTransparent(hWnd, nTra) )
@ 200,100 BUTTON But1 ;
CAPTION "Click Me" ;
HEIGHT 35 WIDTH 100 ;
ACTION ( nTra := IIF(nTra == 128, 255, 128), SetTransparent(hWnd, nTra) )
END WINDOW
CENTER WINDOW WinTR
ACTIVATE WINDOW WinTR
RETURN NIL
#pragma BEGINDUMP
#include <windows.h>
#include "hbapi.h"
HB_FUNC( SETTRANSPARENT )
{
typedef BOOL (__stdcall *PFN_SETLAYEREDWINDOWATTRIBUTES) (HWND, COLORREF, BYTE, DWORD);
PFN_SETLAYEREDWINDOWATTRIBUTES pfnSetLayeredWindowAttributes = NULL;
HINSTANCE hLib = LoadLibrary("user32.dll");
if (hLib != NULL)
{
pfnSetLayeredWindowAttributes = (PFN_SETLAYEREDWINDOWATTRIBUTES) GetProcAddress(hLib, "SetLayeredWindowAttributes");
}
if (pfnSetLayeredWindowAttributes)
{
SetWindowLong((HWND) hb_parnl (1), GWL_EXSTYLE, GetWindowLong((HWND) hb_parnl (1), GWL_EXSTYLE) | WS_EX_LAYERED);
pfnSetLayeredWindowAttributes((HWND) hb_parnl (1), 0, hb_parni (2), LWA_ALPHA);
}
if (!hLib)
{
FreeLibrary(hLib);
}
}
#pragma ENDDUMP
gfilatov wrote:
Please try the following sample:Code: Select all
/* * MINIGUI - Harbour Win32 GUI library Demo * * Copyright 2002-2009 Roberto Lopez <harbourminigui@gmail.com> * http://harbourminigui.googlepages.com/ */ #include "minigui.ch" Function Main() Local nTra := 128, hWnd..... [/quote] Hi Grigory ! when compiling the code your post the following error appears: [quote]Start... DEMO.prg: In function `HB_FUN_SETTRANSPARENT': DEMO.prg:57: error: `LWA_ALPHA' undeclared (first use in this function) DEMO.prg:57: error: (Each undeclared identifier is reported only once DEMO.prg:57: error: for each function it appears in.) Finished With Errors. [/quote] Can you help me please? Saludos, Fernando Chirico.
works perfectly.rathinagiri wrote:Hi,
Kindly save 'c' pragma entries in a separate .c file and compile along with the prg and try.
Yes me to the same error on this line code
Please try the following sample:Hi Grigory !Code: Select all
/* * MINIGUI - Harbour Win32 GUI library Demo * * Copyright 2002-2009 Roberto Lopez <harbourminigui@gmail.com> * http://harbourminigui.googlepages.com/ */ #include "minigui.ch" Function Main() Local nTra := 128, hWnd.....
when compiling the code your post the following error appears:
Can you help me please?Code: Select all
Start... DEMO.prg: In function `HB_FUN_SETTRANSPARENT': DEMO.prg:57: error: `LWA_ALPHA' undeclared (first use in this function) DEMO.prg:57: error: (Each undeclared identifier is reported only once DEMO.prg:57: error: for each function it appears in.) Finished With Errors.
Saludos, Fernando Chirico.
Code: Select all
pfnSetLayeredWindowAttributes((HWND) hb_parnl (1), 0, hb_parni (2), LWA_ALPHA);fchirico wrote:works perfectly.rathinagiri wrote:Hi,
Kindly save 'c' pragma entries in a separate .c file and compile along with the prg and try.
Sorry for the ignorance.
Whenever you learn something new.
Thank you very much.
Regards, Fernando Chirico.
humm my ignorace is more .... How to compile the .c file ..? 
Hi Juan Rendon,jrendon wrote:Yes me to the same error on this line code
Hi Grigory !
when compiling the code your post the following error appears:
Can you help me please?Code: Select all
Start... DEMO.prg: In function `HB_FUN_SETTRANSPARENT': DEMO.prg:57: error: `LWA_ALPHA' undeclared (first use in this function) DEMO.prg:57: error: (Each undeclared identifier is reported only once DEMO.prg:57: error: for each function it appears in.) Finished With Errors.
Saludos, Fernando Chirico.Code: Select all
pfnSetLayeredWindowAttributes((HWND) hb_parnl (1), 0, hb_parni (2), LWA_ALPHA);
Code: Select all
/*
* MINIGUI - Harbour Win32 GUI library Demo
*
* Copyright 2002-2009 Roberto Lopez <harbourminigui@gmail.com>
* http://harbourminigui.googlepages.com/
*/
#include "minigui.ch"
Function Main()
Local nTra := 128, hWnd
DEFINE WINDOW WinTR ;
AT 0,0 ;
WIDTH 300 ;
HEIGHT 300 ;
TITLE 'Transparent window' ;
MAIN ;
NOSIZE NOMAXIMIZE ;
ON INIT ( hWnd := GetFormHandle('WinTR'), SetTransparent(hWnd, nTra) )
@ 200,100 BUTTON But1 ;
CAPTION "Click Me" ;
HEIGHT 35 WIDTH 100 ;
ACTION ( nTra := IIF(nTra == 128, 255, 128), SetTransparent(hWnd, nTra) )
END WINDOW
CENTER WINDOW WinTR
ACTIVATE WINDOW WinTR
RETURN NIL
#pragma BEGINDUMP
#define LWA_ALPHA 0x02
#include <windows.h>
#include "hbapi.h"
HB_FUNC( SETTRANSPARENT )
{
typedef BOOL (__stdcall *PFN_SETLAYEREDWINDOWATTRIBUTES) (HWND, COLORREF, BYTE, DWORD);
PFN_SETLAYEREDWINDOWATTRIBUTES pfnSetLayeredWindowAttributes = NULL;
HINSTANCE hLib = LoadLibrary("user32.dll");
if (hLib != NULL)
{
pfnSetLayeredWindowAttributes = (PFN_SETLAYEREDWINDOWATTRIBUTES) GetProcAddress(hLib, "SetLayeredWindowAttributes");
}
if (pfnSetLayeredWindowAttributes)
{
SetWindowLong((HWND) hb_parnl (1), GWL_EXSTYLE, GetWindowLong((HWND) hb_parnl (1), GWL_EXSTYLE) | WS_EX_LAYERED);
pfnSetLayeredWindowAttributes((HWND) hb_parnl (1), 0, hb_parni (2), LWA_ALPHA);
}
if (!hLib)
{
FreeLibrary(hLib);
}
}
#pragma ENDDUMP
]gfilatov wrote: Hi Juan Rendon,
Please be so kind to try an updated sample below:Code: Select all
/* * MINIGUI - Harbour Win32 GUI library Demo * * Copyright 2002-2009 Roberto Lopez <harbourminigui@gmail.com> * http://harbourminigui.googlepages.com/ */ #include "minigui.ch" Function Main() Local nTra := 128, hWnd..................... .... I hope that helps. :|[/quote] This code works OK too, and I can compile directly in HMG. Thank You Grigory. Saludos, Fernando Chirico.