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Как установать курсор в _классе_ окна   Найти похожие ветки 

 
Влад_К   (2002-03-28 08:44) [0]

с помощью функции SetWindowLong во что нибудь вроде crNone или же в NULL?

Спасибо!

Влад


 
Севостьянов Игорь   (2002-03-28 19:34) [1]

Читайте мил человек может поможет - вопросы по мылу

SetCursor
This function establishes the cursor shape.

Syntax

HCURSOR SetCursor(HCURSOR hcur);

Parameters

hCursor

[in] Handle to the cursor. The cursor must have been created by the CreateCursor or loaded by the LoadCursor or LoadImage function. If this parameter is NULL, the cursor is removed from the screen.

The width and height of the cursor must be the values returned by the GetSystemMetrics function for SM_CXCURSOR and SM_CYCURSOR.

Return Values

The handle to the previous cursor, if there was one, indicates success. NULL indicates that there was no previous cursor.

Remarks

Use Cursor.lib when targeting a platform that does not support mouse cursors. The only cursor this component supports is the wait cursor. Use the following code to set the wait cursor:

SetCursor(LoadCursor(NULL, IDC_WAIT));

Use Mcursor.lib when targeting a platform that does support mouse cursors. This component does not support color cursors.

If SetCursor is called after CreateCursor creates a zero dimension cursor, it still shows the old cursor, not the new cursor.

The cursor is set only if the new cursor is different from the previous cursor; otherwise, the function returns immediately.

The cursor is a shared resource. A window should set the cursor shape only when the cursor is in its client area or when the window is capturing mouse input. In systems without a mouse, the window should restore the previous cursor before the cursor leaves the client area or before it relinquishes control to another window.

If your application must set the cursor while it is in a window, make sure the class cursor for the specified window’s class is set to NULL. If the class cursor is not NULL, the system restores the class cursor each time the mouse is moved.

The cursor is not shown on the screen if the internal cursor display count is less than zero. This occurs if the application uses the ShowCursor function to hide the cursor more times than to show the cursor.

See also

CreateCursor, GetCursor, GetSystemMetrics, LoadCursor, LoadImage, SetCursorPos, ShowCursor

----------------------------------------------------

LoadCursor
This function loads a cursor resource.

Syntax

HCURSOR LoadCursor ( HINSTANCE hInstance,
LPCTSTR lpCursorName);

Parameters

hInstance

[in] Handle to an instance of the module whose executable file contains the cursor to be loaded.

lpCursorName

[in] Long pointer to a null-terminated string that contains the name of the cursor resource to be loaded. Alternatively, this parameter can consist of the resource identifier in the low-order word and zero in the high-order word. The MAKEINTRESOURCE macro can also be used to create this value.

To use one of the Win32 predefined cursors, the application must set the hInstance parameter to NULL and the lpCursorName parameter to one the values shown in the following table.

Value Description
IDC_APPSTARTING Standard arrow and small hourglass
IDC_ARROW Standard arrow
IDC_CROSS Crosshair
IDC_HAND Hand
IDC_HELP Arrow and question mark
IDC_ICON Obsolete
IDC_NO Slashed circle
IDC_SIZE Obsolete; use IDC_SIZEALL
IDC_SIZEALL Four-pointed arrow pointing north, south, east, and west
IDC_SIZENESW Double-pointed arrow pointing northeast and southwest
IDC_SIZENS Double-pointed arrow pointing north and south
IDC_SIZENWSE Double-pointed arrow pointing northwest and southeast
IDC_SIZEWE Double-pointed arrow pointing west and east
IDC_UPARROW Vertical arrow
IDC_WAIT Hourglass


Return Values

The handle to the newly loaded cursor indicates success. NULL indicates failure. To get extended error information, call GetLastError.

Remarks

The LoadCursor function loads the cursor resource only if it has not been loaded; otherwise, it retrieves the handle to the existing resource. This function returns a valid cursor handle only if the lpCursorName parameter points to a cursor resource. If lpCursorName points to any type of resource other than a cursor (such as an icon), the return value is not NULL, even though it is not a valid cursor handle.

The LoadCursor function searches the cursor resource most appropriate for the cursor for the current display device. The cursor resource can be a color or monochrome bitmap.

Use the cursor component when targeting a platform that does not support mouse cursors. The only cursor this component supports is the wait cursor (IDC_WAIT). Use the LoadCursor function in conjunction with the SetCursor function to set the wait cursor.

SetCursor(LoadCursor(NULL, IDC_WAIT));

Use the mcursor component when targeting a platform that does support mouse cursors. This component supports the LoadCursor function the same way Windows desktop platforms do, except that it only supports monochrome cursors. Windows CE does not support color cursors. An attempt to load a color cursor will have unpredictable results.



 
Влад_К   (2002-03-28 19:48) [2]

Спасибо огромное, но все оказалось проще, меня перемкнуло, почему-то, на функции SetWindowLong хотя НАДО-ТО SetClassLong!



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Форум: "WinAPI";
Текущий архив: 2002.05.30;
Скачать: [xml.tar.bz2];

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