Giuseppe Bilotta : comctl32/toolbar: When a null lParam is passed to TB_GETBUTTONTEXTA, we should not return -1 but the string size.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 585c3abb6b9ab2ab558e6c963e7fb0cbf339ede2
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=585c3abb6b9ab2ab558e6c963e7fb0cbf339ede2

Author: Giuseppe Bilotta <giuseppe.bilotta at gmail.com>
Date:   Thu May  7 11:13:16 2009 +0200

comctl32/toolbar: When a null lParam is passed to TB_GETBUTTONTEXTA, we should not return -1 but the string size.

---

 dlls/comctl32/toolbar.c |    5 +----
 1 files changed, 1 insertions(+), 4 deletions(-)

diff --git a/dlls/comctl32/toolbar.c b/dlls/comctl32/toolbar.c
index c5aa8f4..867bac8 100644
--- a/dlls/comctl32/toolbar.c
+++ b/dlls/comctl32/toolbar.c
@@ -3435,9 +3435,6 @@ TOOLBAR_GetButtonTextA (HWND hwnd, WPARAM wParam, LPARAM lParam)
     INT nIndex;
     LPWSTR lpText;
 
-    if (lParam == 0)
-	return -1;
-
     nIndex = TOOLBAR_GetButtonIndex (infoPtr, (INT)wParam, FALSE);
     if (nIndex == -1)
 	return -1;
@@ -3445,7 +3442,7 @@ TOOLBAR_GetButtonTextA (HWND hwnd, WPARAM wParam, LPARAM lParam)
     lpText = TOOLBAR_GetText(infoPtr,&infoPtr->buttons[nIndex]);
 
     return WideCharToMultiByte( CP_ACP, 0, lpText, -1,
-                                (LPSTR)lParam, 0x7fffffff, NULL, NULL ) - 1;
+                                (LPSTR)lParam, lParam ? 0x7fffffff : 0, NULL, NULL ) - 1;
 }