User32PostMessage(HandleRef, Int32, IntPtr, StringBuilder) Method
Places (posts) a message in the message queue associated with the thread that created
the specified window and returns without waiting for the thread to process the message.
Namespace: DevCase.Win32.NativeMethodsAssembly: DevCase.net48 (in DevCase.net48.dll) Version: 6.0.0.0 (6.0)
XMLNS for XAML: Not mapped to an xmlns.
[DllImportAttribute("User32.dll", CharSet = CharSet.Auto, BestFitMapping = false,
ThrowOnUnmappableChar = true, SetLastError = true)]
public static bool PostMessage(
HandleRef hWnd,
int message,
IntPtr wparam,
StringBuilder lparam
)
<DllImportAttribute("User32.dll", CharSet := CharSet.Auto, BestFitMapping := false,
ThrowOnUnmappableChar := true, SetLastError := true>]
Public Shared Function PostMessage (
hWnd As HandleRef,
message As Integer,
wparam As IntPtr,
lparam As StringBuilder
) As Boolean
Dim hWnd As HandleRef
Dim message As Integer
Dim wparam As IntPtr
Dim lparam As StringBuilder
Dim returnValue As Boolean
returnValue = User32.PostMessage(hWnd,
message, wparam, lparam)
public:
[DllImportAttribute(L"User32.dll", CharSet = CharSet::Auto, BestFitMapping = false,
ThrowOnUnmappableChar = true, SetLastError = true)]
static bool PostMessage(
HandleRef hWnd,
int message,
IntPtr wparam,
StringBuilder^ lparam
)
[<DllImportAttribute("User32.dll", CharSet = CharSet.Auto, BestFitMapping = false,
ThrowOnUnmappableChar = true, SetLastError = true)>]
static member PostMessage :
hWnd : HandleRef *
message : int *
wparam : IntPtr *
lparam : StringBuilder -> bool
No code example is currently available or this language may not be supported.
- hWnd HandleRef
-
Handle to the window whose window procedure will receive the message.
If this parameter is HWND_Broadcast,
the message is sent to all top-level windows in the system,
including disabled or invisible unowned windows, overlapped windows, and pop-up windows;
but the message is not sent to child windows.
- message Int32
-
Specifies the message to be sent.
- wparam IntPtr
-
Specifies additional message-specific information.
- lparam StringBuilder
-
Specifies additional message-specific information.
Boolean
If the function succeeds, the return value is
.
If the function fails, the return value is
.
To get extended error information, call
GetLastWin32Error.