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check for error in GetSelection(long *, long *); clean up SetSelect(long, long)

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@31542 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin 2005-01-21 15:02:58 +00:00
parent 15c86b39a7
commit 08c8690cf0
1 changed files with 22 additions and 20 deletions
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42
src/msw/combobox.cpp
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@ -650,12 +650,11 @@ void wxComboBox::SetInsertionPointEnd()
long wxComboBox::GetInsertionPoint() const
{
#ifdef __WIN32__
DWORD Pos=(DWORD)SendMessage(GetHwnd(), CB_GETEDITSEL, 0, 0L);
return Pos&0xFFFF;
#else
return 0;
#endif
// CB_GETEDITSEL returns the index of the last character after selection in
// its high-order word
DWORD pos= (DWORD)::SendMessage(GetHwnd(), CB_GETEDITSEL, 0, 0L);
return HIWORD(pos);
}
wxTextPos wxComboBox::GetLastPosition() const
@ -691,19 +690,15 @@ void wxComboBox::Remove(long from, long to)
void wxComboBox::SetSelection(long from, long to)
{
HWND hWnd = GetHwnd();
long fromChar = from;
long toChar = to;
// if from and to are both -1, it means
// (in wxWidgets) that all text should be selected.
// This translates into Windows convention
if ((from == -1) && (to == -1))
// if from and to are both -1, it means (in wxWidgets) that all text should
// be selected, translate this into Windows convention
if ( (from == -1) && (to == -1) )
{
fromChar = 0;
toChar = -1;
from = 0;
}
if ( SendMessage(hWnd, CB_SETEDITSEL, (WPARAM)0, (LPARAM)MAKELONG(fromChar, toChar)) == CB_ERR )
if ( SendMessage(GetHwnd(), CB_SETEDITSEL,
0, (LPARAM)MAKELONG(from, to)) == CB_ERR )
{
wxLogDebug(_T("CB_SETEDITSEL failed"));
}
@ -712,10 +707,17 @@ void wxComboBox::SetSelection(long from, long to)
void wxComboBox::GetSelection(long* from, long* to) const
{
DWORD dwStart, dwEnd;
::SendMessage(GetHwnd(), CB_GETEDITSEL, (WPARAM)&dwStart, (LPARAM)&dwEnd);
*from = dwStart;
*to = dwEnd;
if ( ::SendMessage(GetHwnd(), CB_GETEDITSEL,
(WPARAM)&dwStart, (LPARAM)&dwEnd) == CB_ERR )
{
*from =
*to = 0;
}
else
{
*from = dwStart;
*to = dwEnd;
}
}
int wxComboBox::GetSelection() const