This complete program compiles just fine:
void foo(int, int = 0);
void foo(int a, int b)
{
(void)a;
(void)b;
}
int
main()
{
foo4711);
}
However, this part of the *real* program does not:
void register_window _class(const char *class_name,
WNDPROC proc,
HBRUSH background,
const char * = NULL,
HICON = LoadIcon(0, IDI_APPLICATION ),
HCURSOR = LoadCursor(0, IDC_ARROW),
UINT = CS_HREDRAW | CS_VREDRAW,
int = 0,
int = 0);
void register_class( const char *class_name,
WNDPROC proc,
HBRUSH background,
const char *menu_name,
HICON icon,
HCURSOR cursor,
UINT style,
int cbWndExtra,
int cbClsExtra)
{
WNDCLASS wndclass;
ZeroMemory(&wnd class, sizeof(WNDCLASS ));
wndclass.style = style; /* Usually CS_HREDRAW | CS_VREDRAW */
wndclass.lpfnWn dProc = proc;
wndclass.cbClsE xtra = cbClsExtra; /* Usually 0 */
wndclass.cbWndE xtra = cbWndExtra; /* Usually 0 */
wndclass.hInsta nce = NULL;
wndclass.hIcon = icon; /* Usually LoadIcon(0, IDI_APPLICATION ) */
wndclass.hCurso r = cursor; /* Usually LoadCursor(0, IDC_ARROW) */
wndclass.hbrBac kground = background; /*
(HBRUSH)GetStoc kObject(WHITE_B RUSH) */
wndclass.lpszMe nuName = menu_name; /* NULL or
MAKEINTRESOURCE (MENU_ID) */
wndclass.lpszCl assName = class_name;
ATOM a = RegisterClass(& wndclass);
assert(a != 0);
}
HWND
MainWindow::cre ate()
{
const char *application_na me = "Test MyMFC"; /* Doubling as class
name. */
register_class( application_nam e, MainWindow::ent ry,
(HBRUSH)GetStoc kObject(WHITE_B RUSH));
g++ -Wall -W -ansi -pedantic -g -O0 -c MainWindow.cpp
MainWindow.cpp: In member function `HWND__* MainWindow::cre ate()':
MainWindow.cpp: 22: error: too few arguments to function `void
register_class( const char*, LRESULT (*)(HWND__*, UINT, WPARAM, LPARAM),
HBRUSH__*, const char*, HICON__*, HICON__*, UINT, int, int)'
MainWindow.cpp: 48: error: at this point in file
Line 48 is the call to register_class. ..how do I make it compile while
keeping my default arguments? Sorry for posting an incomplete snippet
filled to the brim with platform specific code, but what was supposed
to be my exhibition program failed to exhibit the problem I need help
solving. =/
/ E
2  1737 
Eric Lilja wrote:
This complete program compiles just fine:
void foo(int, int = 0);
void foo(int a, int b)
{
(void)a;
(void)b;
}
int
main()
{
foo4711);
}
However, this part of the *real* program does not:
void register_window _class(const char *class_name,
WNDPROC proc,
HBRUSH background,
const char * = NULL,
HICON = LoadIcon(0, IDI_APPLICATION ),
HCURSOR = LoadCursor(0, IDC_ARROW),
UINT = CS_HREDRAW | CS_VREDRAW,
int = 0,
int = 0);
void register_class( const char *class_name,
WNDPROC proc,
HBRUSH background,
const char *menu_name,
HICON icon,
HCURSOR cursor,
UINT style,
int cbWndExtra,
int cbClsExtra)
{
WNDCLASS wndclass;
ZeroMemory(&wnd class, sizeof(WNDCLASS ));
wndclass.style = style; /* Usually CS_HREDRAW | CS_VREDRAW */
wndclass.lpfnWn dProc = proc;
wndclass.cbClsE xtra = cbClsExtra; /* Usually 0 */
wndclass.cbWndE xtra = cbWndExtra; /* Usually 0 */
wndclass.hInsta nce = NULL;
wndclass.hIcon = icon; /* Usually LoadIcon(0, IDI_APPLICATION ) */
wndclass.hCurso r = cursor; /* Usually LoadCursor(0, IDC_ARROW) */
wndclass.hbrBac kground = background; /*
(HBRUSH)GetStoc kObject(WHITE_B RUSH) */
wndclass.lpszMe nuName = menu_name; /* NULL or
MAKEINTRESOURCE (MENU_ID) */
wndclass.lpszCl assName = class_name;
ATOM a = RegisterClass(& wndclass);
assert(a != 0);
}
HWND
MainWindow::cre ate()
{
const char *application_na me = "Test MyMFC"; /* Doubling as class
name. */
register_class( application_nam e, MainWindow::ent ry,
(HBRUSH)GetStoc kObject(WHITE_B RUSH));
g++ -Wall -W -ansi -pedantic -g -O0 -c MainWindow.cpp
MainWindow.cpp: In member function `HWND__* MainWindow::cre ate()':
MainWindow.cpp: 22: error: too few arguments to function `void
register_class( const char*, LRESULT (*)(HWND__*, UINT, WPARAM, LPARAM),
HBRUSH__*, const char*, HICON__*, HICON__*, UINT, int, int)'
MainWindow.cpp: 48: error: at this point in file
Line 48 is the call to register_class. ..how do I make it compile while
keeping my default arguments? Sorry for posting an incomplete snippet
filled to the brim with platform specific code, but what was supposed
to be my exhibition program failed to exhibit the problem I need help
solving. =/
Take a look at the forward declaration of register_window _class, and
then the actual declaration of register_class. Hint:
register_window _class is not register_class. register_class has no
default params.
red floyd wrote:
Eric Lilja wrote:
This complete program compiles just fine:
void foo(int, int = 0);
void foo(int a, int b)
{
(void)a;
(void)b;
}
int
main()
{
foo4711);
}
However, this part of the *real* program does not:
void register_window _class(const char *class_name,
WNDPROC proc,
HBRUSH background,
const char * = NULL,
HICON = LoadIcon(0, IDI_APPLICATION ),
HCURSOR = LoadCursor(0, IDC_ARROW),
UINT = CS_HREDRAW | CS_VREDRAW,
int = 0,
int = 0);
void register_class( const char *class_name,
WNDPROC proc,
HBRUSH background,
const char *menu_name,
HICON icon,
HCURSOR cursor,
UINT style,
int cbWndExtra,
int cbClsExtra)
{
WNDCLASS wndclass;
ZeroMemory(&wnd class, sizeof(WNDCLASS ));
wndclass.style = style; /* Usually CS_HREDRAW | CS_VREDRAW */
wndclass.lpfnWn dProc = proc;
wndclass.cbClsE xtra = cbClsExtra; /* Usually 0 */
wndclass.cbWndE xtra = cbWndExtra; /* Usually 0 */
wndclass.hInsta nce = NULL;
wndclass.hIcon = icon; /* Usually LoadIcon(0, IDI_APPLICATION ) */
wndclass.hCurso r = cursor; /* Usually LoadCursor(0, IDC_ARROW) */
wndclass.hbrBac kground = background; /*
(HBRUSH)GetStoc kObject(WHITE_B RUSH) */
wndclass.lpszMe nuName = menu_name; /* NULL or
MAKEINTRESOURCE (MENU_ID) */
wndclass.lpszCl assName = class_name;
ATOM a = RegisterClass(& wndclass);
assert(a != 0);
}
HWND
MainWindow::cre ate()
{
const char *application_na me = "Test MyMFC"; /* Doubling as class
name. */
register_class( application_nam e, MainWindow::ent ry,
(HBRUSH)GetStoc kObject(WHITE_B RUSH));
g++ -Wall -W -ansi -pedantic -g -O0 -c MainWindow.cpp
MainWindow.cpp: In member function `HWND__* MainWindow::cre ate()':
MainWindow.cpp: 22: error: too few arguments to function `void
register_class( const char*, LRESULT (*)(HWND__*, UINT, WPARAM, LPARAM),
HBRUSH__*, const char*, HICON__*, HICON__*, UINT, int, int)'
MainWindow.cpp: 48: error: at this point in file
Line 48 is the call to register_class. ..how do I make it compile while
keeping my default arguments? Sorry for posting an incomplete snippet
filled to the brim with platform specific code, but what was supposed
to be my exhibition program failed to exhibit the problem I need help
solving. =/
Take a look at the forward declaration of register_window _class, and
then the actual declaration of register_class. Hint:
register_window _class is not register_class. register_class has no
default params.
LOL! I must be blind not seeing that! Thanks for the quick response,
now everything works just fine.
/ E This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
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