The following are the window styles. Return New IntPtr (SetWindowLong32 (hWnd, nIndex, dwNewLong. Change your 'temp' variable to an IntPtr type. Learn more about Teams Hi, In an effort to avoid global variables in my program, im trying to use SetWindowLong to store a pointer to an instance of a normal class. Syntax LONG_PTR GetWindowLongPtrA( [in] HWND hWnd, [in] int nIndex ); Parameters [in] hWnd. I use this function: [DllImport ( "user32. 0x00080000. The function prototype is that: LONG SetWindowLong( HWND hWnd,//handletowindow intn lndex,//offsetofvaluetoset LONG dwNewLong//newvalue ); I don't know how to transfer a. File: jabber_search. Return SetWindowLongPtr64 (hWnd, nIndex, dwNewLong) Else. A window with this style cannot have a menu bar. I create an instance ofthe class in WinMain, because I have to use it in message loop. Connect and share knowledge within a single location that is structured and easy to search. – Raymond Chen Jan 23, 2021 at 0:26 2 on 64bit this is different functions. cpp Project: 0xmono/miranda-ng. ) Changes an attribute of the specified window. static INT_PTR CALLBACK JabberSearchAdvancedDlgProc (HWND hwndDlg, UINT msg, WPARAM wParam. Dim temp As IntPtr temp = SetWindowLong(hwnd, GWL_WNDPROC, glnghPrevWnd) In VB6 they used Longs for handles but, in VB. int SetWindowLongPtr (. After the window has been created, these styles cannot be modified, except as noted. Not sure what the rest of your code looks. Net they use IntPtr types for handles. This style cannot be used with the WS_POPUP style. If IntPtr. 0. int hWnd, int nIndex, int dwNewLong. Window Styles. Q&A for work. The function also sets a value at the specified offset in the extra window memory. You can rate examples to help us improve the quality of examples. You can rate examples to help us improve the quality of examples. dll" )] static extern int SetWindowLong ( IntPtr hWnd, int nIndex, uint dwNewLong ); and pass values from these: The SetWindowLong function returns an IntPtr type, not a Long type which you are trying to use. SetWindowLong only for set GWL_STYLE and GWL_EXSTYLE. The window is a layered window. The window has a double border; the window can, optionally, be created with a title bar by specifying the WS_CAPTION style in the dwStyle parameter. ToInt32)) End If. The window is a child window. This style cannot be used if the window has a class style of either CS_OWNDC or CS_CLASSDC. The function also retrieves the value at a specified offset into the extra window memory. Type: HWND A handle to the window and, indirectly, the class to which the window belongs. From SetWindowSubclass reference: Warning You cannot use the subclassing helper functions to subclass a window across threads. for another - use SetWindowLongPtr – RbMm Jan 23, 2021 at 0:52 2 Function windows :: Win32 :: UI :: WindowsAndMessaging :: SetWindowLongPtrW. 0x00000001L. Syntax C++ LONG_PTR SetWindowLongPtrW( [in] HWND hWnd, [in] int nIndex, [in] LONG_PTR dwNewLong ); Parameters [in] hWnd Type: HWND A handle to the window and, indirectly, the class to which the window belongs. SetWindowLongPtr is for setting a pointer-sized integer. WS_EX_LAYERED. These are the top rated real world C++ (Cpp) examples of SetWindowLongPtr extracted from open source projects. LONG_PTR SetWindowLongPtrW( HWND hWnd, int nIndex, LONG_PTR dwNewLong ); pub unsafe extern "system" fn SetWindowLongPtrW (. . In turn SetWindowLongPtr must be called from the process where the window. The window has a title bar (includes the WS_BORDER style). Public Shared Function SetWindowLongPtr (ByVal hWnd As IntPtr, nIndex As WindowLongFlags, ByVal dwNewLong As IntPtr) As IntPtr. 1 Answer. When compiling for 32-bit Windows, SetWindowLongPtr is defined as a call to the SetWindowLong function. Example #1. If you are compiling as 32-bit, then a regular long is big enough. 02/08/2023 Feedback In this article Syntax Parameters Return value Remarks Show 2 more Retrieves information about the specified window. ) -> LONG_PTR. Teams. These are the top rated real world C++ (Cpp) examples of SetWindowLong extracted from open source projects. C++ (Cpp) SetWindowLong - 30 examples found. The old SetWindowLong () and GetWindowLong () functions are limited to DWORD sized (32 bit) values for backwards compatibility, and Microsoft have introduced new versions, SetWindowLongPtr () and GetWindowLongPtr () that allow you to work with pointer-sized values (32 bit in a 32 bit build, and 64 bit in a 64 bit build). Note To write code that is compatible with both 32-bit and 64-bit versions of Windows, use GetWindowLongPtr. 为 32 位 Windows 编译时， SetWindowLongPtr 定义为对 SetWindowLong 函数的调用。 语法 C++ LONG_PTR SetWindowLongPtrA( [in] HWND hWnd, [in] int nIndex, [in] LONG_PTR dwNewLong ); 参数 [in] hWnd 类型： HWND 窗口的句柄，以及窗口所属的类的间接句柄。 如果拥有 由 hWnd 参数指定的窗口的进程在 UIPI 层次结构中的进程特权高于调用线程所在的进程， 则 SetWindowLongPtr 函数将失败。 function. pub unsafe fn SetWindowLongPtrW<P0> ( hwnd: P0, nindex: WINDOW_LONG_PTR_INDEX , dwnewlong: isize ) -> isize where P0: IntoParam< HWND >, Required features: "Win32_UI_WindowsAndMessaging", "Win32_Foundation". Size = 8 Then. hWnd: HWND, nIndex: c_int, dwNewLong: LONG_PTR. Show file. You need to call SetWindowSubclass from the thread where the window was created, at which the message queue associated with it runs.