digitalmars.D - now I didn't have RegisterClassExW, how to import that ?
- rsk82 (5/5) Jan 27 2013 the error is :
-
Benjamin Thaut
(2/7)
Jan 27 2013
extern(Windows)
- rsk82 (12/13) Jan 27 2013 I am not sure what I was supposed to do, so I did this:
- Benjamin Thaut (6/19) Jan 27 2013 Did you link against User32.lib?
- John Chapman (2/16) Jan 27 2013
- rsk82 (11/12) Jan 27 2013 Ok, I've put it into module, linked in the module
- John Chapman (17/29) Jan 27 2013 Because WNDCLASSEXW is not defined. So define it above
- John Chapman (2/37) Jan 27 2013 Actually, replace "LPCTSTR" above with "LPCWSTR".
- rsk82 (3/4) Jan 27 2013 Ok, fine, now the linker *again*. I have some lenghty code, if is
- Phil Lavoie (41/57) Jan 29 2013 If you find yourself desiring other bindings of the win32 api and
- Phil Lavoie (7/68) Jan 29 2013 Pragmas are included inside the modules (so you dont have to
- rsk82 (5/6) Jan 27 2013 I don't know If that what you meant but this works *inside* the
- rsk82 (5/7) Jan 27 2013 No, I'm wrong, now the compiler ignores the class that I put in
the error is : Error: undefined identifier RegisterClassExW, did you mean function RegisterClassExA? No I didn't mean that. So how to import winapi functions ?
Jan 27 2013
Am 27.01.2013 18:45, schrieb rsk82:the error is : Error: undefined identifier RegisterClassExW, did you mean function RegisterClassExA? No I didn't mean that. So how to import winapi functions ?extern(Windows) <insert function definition here>
Jan 27 2013
On Sunday, 27 January 2013 at 17:51:40 UTC, Benjamin Thaut wrote:extern(Windows) <insert function definition here>I am not sure what I was supposed to do, so I did this: extern(Windows) ATOM RegisterClassExW(const WNDCLASSEXW *lpwcx); ATOM class_atom = RegisterClassExW(&wc); and got linker error: OPTLINK (R) for Win32 Release 8.00.12 Copyright (C) Digital Mars 1989-2010 All rights reserved. http://www.digitalmars.com/ctg/optlink.html test.obj(test) Error 42: Symbol Undefined __D4test8doWindow6__ctorMFZC4test8doWindow16RegisterClassExWWxPS4test8doWindow6__ctorMFZC4test8doWindow11WNDCLASSEXWZt 4 --- errorlevel 1
Jan 27 2013
Benjamin Thaut <code benjamin-thaut.de> Am 27.01.2013 19:01, schrieb rsk82:On Sunday, 27 January 2013 at 17:51:40 UTC, Benjamin Thaut wrote:Did you link against User32.lib? I also recommend that you use VisualD it will give you "pretty" linker error messages. Kind Regards Ingraterextern(Windows) <insert function definition here>I am not sure what I was supposed to do, so I did this: extern(Windows) ATOM RegisterClassExW(const WNDCLASSEXW *lpwcx); ATOM class_atom = RegisterClassExW(&wc); and got linker error: OPTLINK (R) for Win32 Release 8.00.12 Copyright (C) Digital Mars 1989-2010 All rights reserved. http://www.digitalmars.com/ctg/optlink.html test.obj(test) Error 42: Symbol Undefined __D4test8doWindow6__ctorMFZC4test8doWindow16RegisterClassExWWxPS4test8doWindow6__ctorMFZC4test8doWindow11WNDCLASSEXWZt 4 --- errorlevel 1
Jan 27 2013
On Sunday, 27 January 2013 at 18:01:38 UTC, rsk82 wrote:On Sunday, 27 January 2013 at 17:51:40 UTC, Benjamin Thaut wrote:This must be declared at module level (not inside a function).extern(Windows) <insert function definition here>I am not sure what I was supposed to do, so I did this: extern(Windows) ATOM RegisterClassExW(const WNDCLASSEXW *lpwcx);ATOM class_atom = RegisterClassExW(&wc); and got linker error: OPTLINK (R) for Win32 Release 8.00.12 Copyright (C) Digital Mars 1989-2010 All rights reserved. http://www.digitalmars.com/ctg/optlink.html test.obj(test) Error 42: Symbol Undefined __D4test8doWindow6__ctorMFZC4test8doWindow16RegisterClassExWWxPS4test8doWindow6__ctorMFZC4test8doWindow11WNDCLASSEXWZt 4 --- errorlevel 1
Jan 27 2013
On Sunday, 27 January 2013 at 18:26:04 UTC, John Chapman wrote:This must be declared at module level (not inside a function).Ok, I've put it into module, linked in the module pragma(lib, "user32.lib"); and pragma(lib, "gdi32.lib"); all this works until I put extern(Windows) ATOM RegisterClassExW(const WNDCLASSEXW *lpwcx); on line 30, then I get as if this was a code not a new function import: .\mod\myModule.d(30): Error: undefined identifier WNDCLASSEXW, did you mean struct WNDCLASSEXA?
Jan 27 2013
On Sunday, 27 January 2013 at 18:58:59 UTC, rsk82 wrote:On Sunday, 27 January 2013 at 18:26:04 UTC, John Chapman wrote:Because WNDCLASSEXW is not defined. So define it above RegisterClassExW. struct WNDCLASSEXW { UINT cbSize = WNDCLASSEXW.sizeof; UINT style; WNDPROC lpfnWndProc; int cbClsExtra; int cbWndExtra; HINSTANCE hInstance; HICON hIcon; HCURSOR hCursor; HBRUSH hbrBackground; LPCTSTR lpszMenuName; LPCTSTR lpszClassName; HICON hIconSm; }This must be declared at module level (not inside a function).Ok, I've put it into module, linked in the module pragma(lib, "user32.lib"); and pragma(lib, "gdi32.lib"); all this works until I put extern(Windows) ATOM RegisterClassExW(const WNDCLASSEXW *lpwcx); on line 30, then I get as if this was a code not a new function import: .\mod\myModule.d(30): Error: undefined identifier WNDCLASSEXW, did you mean struct WNDCLASSEXA?
Jan 27 2013
On Sunday, 27 January 2013 at 19:29:03 UTC, John Chapman wrote:On Sunday, 27 January 2013 at 18:58:59 UTC, rsk82 wrote:Actually, replace "LPCTSTR" above with "LPCWSTR".On Sunday, 27 January 2013 at 18:26:04 UTC, John Chapman wrote:Because WNDCLASSEXW is not defined. So define it above RegisterClassExW. struct WNDCLASSEXW { UINT cbSize = WNDCLASSEXW.sizeof; UINT style; WNDPROC lpfnWndProc; int cbClsExtra; int cbWndExtra; HINSTANCE hInstance; HICON hIcon; HCURSOR hCursor; HBRUSH hbrBackground; LPCTSTR lpszMenuName; LPCTSTR lpszClassName; HICON hIconSm; }This must be declared at module level (not inside a function).Ok, I've put it into module, linked in the module pragma(lib, "user32.lib"); and pragma(lib, "gdi32.lib"); all this works until I put extern(Windows) ATOM RegisterClassExW(const WNDCLASSEXW *lpwcx); on line 30, then I get as if this was a code not a new function import: .\mod\myModule.d(30): Error: undefined identifier WNDCLASSEXW, did you mean struct WNDCLASSEXA?
Jan 27 2013
On Sunday, 27 January 2013 at 19:31:59 UTC, John Chapman wrote:Actually, replace "LPCTSTR" above with "LPCWSTR".Ok, fine, now the linker *again*. I have some lenghty code, if is strip it down I post it here.
Jan 27 2013
In case you had not seen in the other thread:
On Sunday, 27 January 2013 at 14:06:00 UTC, rsk82 wrote:
Ok, nevermind, found, it, it was so easy that it simply didn't
have to had an example:
struct WNDCLASSEXW {
UINT cbSize;
UINT style;
WNDPROC lpfnWndProc;
int cbClsExtra;
int cbWndExtra;
HINSTANCE hInstance;
HICON hIcon;
HCURSOR hCursor;
HBRUSH hbrBackground;
LPCWSTR lpszMenuName;
LPCWSTR lpszClassName;
HICON hIconSm;
}
If you find yourself desiring other bindings of the win32 api and
don't want them to define them by hand, a project was started
some time ago by Stewart Gordon that contains an almost complete
set of bindings:
http://dsource.org/projects/bindings/wiki/WindowsApi
Set the import directory of your compiler appropriately and use
it like that:
import win32.winuser; //example, where you will probably find
wndclassexw
Additionnally, you should know that SOMETHINGA and SOMETHINGW
means A for ascii and W for wide chars (UCS-2, so every char
is two bytes instead of one). Normally, the api was intented to
be used without the extra letter at the end:
WNDCLASSEX wndclass; //No suffix: defaults to ascii.
When people compile with the preprocessor Unicode defined, then
all aliases are mapped to their W counterpart. What changes is
how you pass and receive strings.
Keep in mind they must be null terminated (as in C).
The microsoft bunch also defined another macro that would help
you make your code independant of the version used, it is called
TCHAR.
TCHAR * someString; //Will be char * without unicode or wchar
with.
someString = "My window class".toUTFz!( TCHAR * ); //This is how
I use the std library to convert my strings. Try to keep a handle
on strings that might be kept by the OS, to prevent them from
being garbage collected.
WNDCLASSEX wndclass;
...
wndclass.lpszClassName = someString;
Peace,
Phil
...
And because I forgot to mention, to mimic the preprocessor
directive, the bindings use a version conditional compilation.
Therefore, you use it like that:
rdmd -I/where/you/put/the/bindings -version=Unicode yourmodule.d
You can double check in the code, but IIRC, only the first letter
is capsed.
Jan 29 2013
On Tuesday, 29 January 2013 at 19:04:04 UTC, Phil Lavoie wrote:In case you had not seen in the other thread: On Sunday, 27 January 2013 at 14:06:00 UTC, rsk82 wrote:Pragmas are included inside the modules (so you dont have to explicitly link against libraries). There is a 1 to 1 mapping with the genuine win32 headers. Example: winuser.h becomes win32.winuser; wingdi.h becomes win32.wingdi; etc...Ok, nevermind, found, it, it was so easy that it simply didn't have to had an example: struct WNDCLASSEXW { UINT cbSize; UINT style; WNDPROC lpfnWndProc; int cbClsExtra; int cbWndExtra; HINSTANCE hInstance; HICON hIcon; HCURSOR hCursor; HBRUSH hbrBackground; LPCWSTR lpszMenuName; LPCWSTR lpszClassName; HICON hIconSm; }If you find yourself desiring other bindings of the win32 api and don't want them to define them by hand, a project was started some time ago by Stewart Gordon that contains an almost complete set of bindings: http://dsource.org/projects/bindings/wiki/WindowsApi Set the import directory of your compiler appropriately and use it like that: import win32.winuser; //example, where you will probably find wndclassexw Additionnally, you should know that SOMETHINGA and SOMETHINGW means A for ascii and W for wide chars (UCS-2, so every char is two bytes instead of one). Normally, the api was intented to be used without the extra letter at the end: WNDCLASSEX wndclass; //No suffix: defaults to ascii. When people compile with the preprocessor Unicode defined, then all aliases are mapped to their W counterpart. What changes is how you pass and receive strings. Keep in mind they must be null terminated (as in C). The microsoft bunch also defined another macro that would help you make your code independant of the version used, it is called TCHAR. TCHAR * someString; //Will be char * without unicode or wchar with. someString = "My window class".toUTFz!( TCHAR * ); //This is how I use the std library to convert my strings. Try to keep a handle on strings that might be kept by the OS, to prevent them from being garbage collected. WNDCLASSEX wndclass; ... wndclass.lpszClassName = someString; Peace, Phil ... And because I forgot to mention, to mimic the preprocessor directive, the bindings use a version conditional compilation. Therefore, you use it like that: rdmd -I/where/you/put/the/bindings -version=Unicode yourmodule.d You can double check in the code, but IIRC, only the first letter is capsed.
Jan 29 2013
On Sunday, 27 January 2013 at 17:51:40 UTC, Benjamin Thaut wrote:extern(Windows) <insert function definition here>I don't know If that what you meant but this works *inside* the code: extern(Windows) ATOM class_atom = RegisterClassExW(&wc);
Jan 27 2013
On Sunday, 27 January 2013 at 19:25:28 UTC, rsk82 wrote:extern(Windows) ATOM class_atom = RegisterClassExW(&wc);No, I'm wrong, now the compiler ignores the class that I put in my module, I can write every nonsense that comes to my mind and it compiles. But if I put extern outside of the class then it shows error.
Jan 27 2013