hInstance
Returns the instance handle of the running executable or DLL. Read-only.
Syntax: App.hInstance As LongPtr
Returns a LongPtr holding the HINSTANCE of the current process module. This is the same value that the Win32 API GetModuleHandle(NULL) returns for an EXE, or the HINSTANCE passed to DllMain for a DLL. Pass it to Win32 API functions that require an instance handle, such as LoadIcon, LoadCursor, CreateWindow, or RegisterClass.
Note
hInstance returns a LongPtr, which is 32 bits wide in a 32-bit build and 64 bits wide in a 64-bit build. Declare any Win32 API parameter that receives it as LongPtr to keep the project portable across both targets.
Example
This example passes the application instance handle to the Win32 LoadIcon API.
Private Declare PtrSafe Function LoadIcon Lib "user32" Alias "LoadIconA" ( _
ByVal hInstance As LongPtr, _
ByVal lpIconName As String) As LongPtr
Private Sub Form_Load()
Dim hIcon As LongPtr
hIcon = LoadIcon(App.hInstance, "MY_ICON")
End Sub