Comments on: Lesson 3 – Resources: Icons, Dialogs and Menus

By: Pravin Paratey

Pravin Paratey — Sat, 28 Mar 2009 07:14:15 +0000

Updated the code. You’ll have to change

HINSTANCE m_hInstance;

static HINSTANCE m_hInstance;

in MainWindow.h

By: bascarane

bascarane — Tue, 03 Feb 2009 11:40:43 +0000

I found a workaround for the error, “MainWindow.h|13|error: invalid use of member `MainWindow::m_hInstance’”.

try to add a global variable in mainWindow.hpp as follows:

static HINSTANCE g_instance;

then in mainWindow.cpp, initialise the global variable with the instance value as follows:

MainWindow::MainWindow(HINSTANCE hInstance)
{
g_instance = hInstance;
m_hInstance = hInstance; // Save Instance handle

m_wndClass.cbSize = sizeof(WNDCLASSEX); // Must always be sizeof(WNDCLASSEX)
…

and then finally, use this value instead of m_hInstance as follows:

case WM_LBUTTONDOWN:
AboutDialog* dlg = new AboutDialog();
dlg->Run(m_hInstance, hwnd);
delete dlg; dlg = NULL;
break;

this should solve the problem!

By: bascarane

bascarane — Tue, 03 Feb 2009 10:34:10 +0000

I also get the same error. Seems that the member variables cannot be used in static function. Is there another way to acheive this? may be create another function and call it!

By: w359

w359 — Sun, 04 Jan 2009 21:48:54 +0000

I am also getting:
MainWindow.h|13|error: invalid use of member `MainWindow::m_hInstance’ in static member function
MainWindow.cpp|48|error: from this location

when adding the AboutDialog. What’s wrong???

By: bungy_serbia

bungy_serbia — Sat, 13 Dec 2008 10:38:32 +0000

invalid use of member `MainWindow::m_hInstance’ in static member function