Position und Größe fremder Fenster ändern. WinAPI?

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Power P
Beiträge: 36
Registriert: 05.08.2014 04:02

Position und Größe fremder Fenster ändern. WinAPI?

Beitrag von Power P »

Hallo...

...ich habe mich nun weitestgehend durch die WinAPI Library von RSBasic durchgearbeitet.
In der Library gibt es die Beispiele "Fenstergröße ändern". Diese funktionieren aber nur bei der Konsole.

Wie kann ich die Fenstergröße z.B. vom Notepad ändern? Und wie lässt sich dieses Fenster an eine bestimmte Position verschieben?



Vielen Dank!

Edit by NicTheQuick: Aussagekräftigen Titel gesetzt
sibru
Beiträge: 265
Registriert: 15.09.2004 18:11
Wohnort: hamburg

Re: WinAPI Fragen?

Beitrag von sibru »

erstmal Notepad-Handle ermitteln:

Code: Alles auswählen

The FindWindow function retrieves the handle to the top-level window whose class name and window name match the specified strings. This function does not search child windows. 

HWND FindWindow(

    LPCTSTR lpClassName,	// pointer to class name
    LPCTSTR lpWindowName 	// pointer to window name
   );	
Parameters

lpClassName

Points to a null-terminated string that specifies the class name or is an atom that identifies the class-name string. If this parameter is an atom, it must be a global atom created by a previous call to the GlobalAddAtom function. The atom, a 16-bit value, must be placed in the low-order word of lpClassName; the high-order word must be zero. 

lpWindowName

Points to a null-terminated string that specifies the window name (the window’s title). If this parameter is NULL, all window names match. 

Return Values

If the function succeeds, the return value is the handle to the window that has the specified class name and window name.
If the function fails, the return value is NULL. To get extended error information, call GetLastError. 
also z.Bsp.
NotePad_WinID=FindWindow_(0,GetFilePart(File$)+" - Editor")
und mit diesem Handle dann auf das Fenster zugreifen:

Code: Alles auswählen

The SetWindowPos function changes the size, position, and Z order of a child, pop-up, or top-level window. Child, pop-up, and top-level windows are ordered according to their appearance on the screen. The topmost window receives the highest rank and is the first window in the Z order. 

BOOL SetWindowPos(

    HWND hWnd,	// handle of window
    HWND hWndInsertAfter,	// placement-order handle
    int X,	// horizontal position
    int Y,	// vertical position
    int cx,	// width
    int cy,	// height
    UINT uFlags 	// window-positioning flags
   );	
Parameters

hWnd

Identifies the window. 

hWndInsertAfter

Identifies the window to precede the positioned window in the Z order. This parameter must be a window handle or one of the following values: 

Value	Meaning
HWND_BOTTOM	Places the window at the bottom of the Z order. If the hWnd parameter identifies a topmost window, the window loses its topmost status and is placed at the bottom of all other windows.
HWND_NOTOPMOST	Places the window above all non-topmost windows (that is, behind all topmost windows). This flag has no effect if the window is already a non-topmost window.
HWND_TOP	Places the window at the top of the Z order.
HWND_TOPMOST	Places the window above all non-topmost windows. The window maintains its topmost position even when it is deactivated.
For more information about how this parameter is used, see the following Remarks section. 

X

Specifies the new position of the left side of the window. 

Y

Specifies the new position of the top of the window. 

cx

Specifies the new width of the window, in pixels. 

cy

Specifies the new height of the window, in pixels. 

uFlags

Specifies the window sizing and positioning flags. This parameter can be a combination of the following values: 

Value	Meaning
SWP_DRAWFRAME	Draws a frame (defined in the window’s class description) around the window.
SWP_FRAMECHANGED	Sends a WM_NCCALCSIZE message to the window, even if the window’s size is not being changed. If this flag is not specified, WM_NCCALCSIZE is sent only when the window’s size is being changed.
SWP_HIDEWINDOW	Hides the window.
SWP_NOACTIVATE	Does not activate the window. If this flag is not set, the window is activated and moved to the top of either the topmost or non-topmost group (depending on the setting of the hWndInsertAfter parameter).
SWP_NOCOPYBITS	Discards the entire contents of the client area. If this flag is not specified, the valid contents of the client area are saved and copied back into the client area after the window is sized or repositioned.
SWP_NOMOVE	Retains the current position (ignores the X and Y parameters).
SWP_NOOWNERZORDER	Does not change the owner window’s position in the Z order.
SWP_NOREDRAW	Does not redraw changes. If this flag is set, no repainting of any kind occurs. This applies to the client area, the nonclient area (including the title bar and scroll bars), and any part of the parent window uncovered as a result of the window being moved. When this flag is set, the application must explicitly invalidate or redraw any parts of the window and parent window that need redrawing.
SWP_NOREPOSITION	Same as the SWP_NOOWNERZORDER flag.
SWP_NOSENDCHANGING	Prevents the window from receiving the WM_WINDOWPOSCHANGING message.
SWP_NOSIZE	Retains the current size (ignores the cx and cy parameters).
SWP_NOZORDER	Retains the current Z order (ignores the hWndInsertAfter parameter).
SWP_SHOWWINDOW	Displays the window.
Return Values

If the function succeeds, the return value is nonzero.
If the function fails, the return value is zero. To get extended error information, call GetLastError. 

Remarks

If the SWP_SHOWWINDOW or SWP_HIDEWINDOW flag is set, the window cannot be moved or sized. 
All coordinates for child windows are client coordinates (relative to the upper-left corner of the parent window’s client area). 
A window can be made a topmost window either by setting the hWndInsertAfter parameter to HWND_TOPMOST and ensuring that the SWP_NOZORDER flag is not set, or by setting a window’s position in the Z order so that it is above any existing topmost windows. When a non-topmost window is made topmost, its owned windows are also made topmost. Its owners, however, are not changed. 

If neither the SWP_NOACTIVATE nor SWP_NOZORDER flag is specified (that is, when the application requests that a window be simultaneously activated and its position in the Z order changed), the value specified in hWndInsertAfter is used only in the following circumstances: 

·	Neither the HWND_TOPMOST nor HWND_NOTOPMOST flag is specified in hWndInsertAfter. 
·	The window identified by hWnd is not the active window. 

An application cannot activate an inactive window without also bringing it to the top of the Z order. Applications can change an activated window’s position in the Z order without restrictions, or it can activate a window and then move it to the top of the topmost or non-topmost windows. 
If a topmost window is repositioned to the bottom (HWND_BOTTOM) of the Z order or after any non-topmost window, it is no longer topmost. When a topmost window is made non-topmost, its owners and its owned windows are also made non-topmost windows. 

A non-topmost window can own a topmost window, but the reverse cannot occur. Any window (for example, a dialog box) owned by a topmost window is itself made a topmost window, to ensure that all owned windows stay above their owner. 
If an application is not in the foreground, and should be in the foreground, it must call the SetForegroundWindow function. 

viel Erfolg !!!
Zuletzt geändert von sibru am 13.06.2017 19:53, insgesamt 2-mal geändert.
Bild Bild
Power P
Beiträge: 36
Registriert: 05.08.2014 04:02

Re: WinAPI Fragen?

Beitrag von Power P »

Ok, danke...

...werde mich da mal durchkämpfen.
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Fluid Byte
Beiträge: 3110
Registriert: 27.09.2006 22:06
Wohnort: Berlin, Mitte

Re: Position und Größe fremder Fenster ändern. WinAPI?

Beitrag von Fluid Byte »

Code: Alles auswählen

RunProgram("Notepad")
Delay(2000)
hwndNotepad = FindWindow_("Notepad",0)
MoveWindow_(hwndNotepad,0,0,640,480,0)
Windows 10 Pro, 64-Bit / Outtakes | Derek
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