Add AutoCompleteComboBox to Poster.c

src/AutoCompleteComboBox.c

@@ -0,0 +1,102 @@
+//
+//  AutoCompleteComboBox.c
+//
+//  To implement an autocomplete in ComboBox
+//
+
+
+#include "WinSpy.h"
+#include <tchar.h>
+
+
+#define ACC_EDIT_PROC TEXT("Acc_Edit_Proc")
+#define GetEditOriProc(hEdit) (WNDPROC)GetProp(hEdit, ACC_EDIT_PROC)
+
+
+static void ACComboBoxEdit_AutoComplete(HWND hComboBox, TCHAR ch)
+{
+    TCHAR txt[MAX_PATH] = { 0 };
+    int index = ComboBox_GetCurSel(hComboBox);
+
+    if (!_istcntrl(ch))
+    {
+        ComboBox_GetText(hComboBox, txt, ARRAYSIZE(txt));
+
+        index = ComboBox_FindStringExact(hComboBox, index, txt);
+        if (CB_ERR == index)
+        {
+            index = ComboBox_FindString(hComboBox, index, txt);
+        }
+
+        if (CB_ERR != index)
+        {
+            ComboBox_SetCurSel(hComboBox, index);
+            ComboBox_SetEditSel(hComboBox, _tcslen(txt), -1);
+        }
+    }
+}
+
+//
+// Paste text cannot trigger autocomplete, so when the control
+// loses focus, we will try to implement it manually.
+//
+static void ACComboBoxEdit_OnKillFocus(HWND hComboBox)
+{
+    TCHAR txt[MAX_PATH] = { 0 };
+
+    int tc = ComboBox_GetText(hComboBox, txt, ARRAYSIZE(txt));
+    int si = ComboBox_GetCurSel(hComboBox);
+    int ei = ComboBox_FindStringExact(hComboBox, si, txt);
+
+    if (tc != 0 && CB_ERR != ei && si != ei)
+    {
+        ComboBox_SetCurSel(hComboBox, ei);
+    }
+}
+
+static LRESULT CALLBACK ACComboBoxEdit_Proc(HWND hEdit, UINT msg, WPARAM wParam, LPARAM lParam)
+{
+    switch (msg)
+    {
+    case WM_CHAR:
+    {
+        LRESULT r = CallWindowProc(GetEditOriProc(hEdit), hEdit, msg, wParam, lParam);
+        ACComboBoxEdit_AutoComplete(GetParent(hEdit), (TCHAR)wParam);
+        return r;
+    }
+
+    case WM_KILLFOCUS:
+        ACComboBoxEdit_OnKillFocus(GetParent(hEdit));
+        break;
+
+    case WM_DESTROY:
+        SetWindowLongPtr(hEdit, GWLP_WNDPROC, (LONG_PTR)GetEditOriProc(hEdit));
+        RemoveProp(hEdit, ACC_EDIT_PROC);
+        break;
+    }
+
+    return CallWindowProc(GetEditOriProc(hEdit), hEdit, msg, wParam, lParam);
+}
+
+static void ACComboBoxEdit_Init(HWND hComboBox)
+{
+    HWND     h = FindWindowEx(hComboBox, NULL, WC_EDIT, NULL);
+    LONG_PTR o = SetWindowLongPtr(h, GWLP_WNDPROC, (LONG_PTR)ACComboBoxEdit_Proc);
+
+    SetProp(h, ACC_EDIT_PROC, (HANDLE)o);
+
+    ComboBox_LimitText(hComboBox, MAX_PATH - 1);
+}
+
+void InitAutoCompleteComboBox(HWND hDlg, int nIdComboBox)
+{
+    TCHAR txt[MAX_PATH] = { 0 };
+    HWND hcb = GetDlgItem(hDlg, nIdComboBox);
+
+    GetClassName(hcb, txt, ARRAYSIZE(txt));
+
+    if (lstrcmp(WC_COMBOBOX, txt) == 0)
+    {
+        ACComboBoxEdit_Init(hcb);
+    }
+}

src/AutoCompleteComboBox.h

@@ -0,0 +1,14 @@
+#ifndef AUTOCOMPLETECOMBOBOX_INCLUDED
+#define AUTOCOMPLETECOMBOBOX_INCLUDED
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void InitAutoCompleteComboBox(HWND hDlg, int nIdComboBox);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif

src/Poster.c

@@ -13,6 +13,7 @@
 #include "Poster.h"
 #include "resource.h"
 #include "Utils.h"
+#include "AutoCompleteComboBox.h"
 
 typedef struct {
     PCSTR pszMsgName;
@@ -543,7 +544,7 @@ INT_PTR CALLBACK PosterDlgProc(HWND hwnd, UINT iMsg, WPARAM wParam, LPARAM lPara
     {
     case WM_INITDIALOG:
         hwndTarget = (HWND)lParam;
-
+        InitAutoCompleteComboBox(hwnd, IDC_POSTER_MESSAGES);
         SetInitialGuiInfo(hwnd, hwndTarget);
         return TRUE;
 

src/winspy.vcxproj

@@ -119,6 +119,7 @@
     </Link>
   </ItemDefinitionGroup>
   <ItemGroup>
+    <ClCompile Include="AutoCompleteComboBox.c" />
     <ClCompile Include="BitmapButton.c" />
     <ClCompile Include="CaptureWindow.c" />
     <ClCompile Include="DisplayClassInfo.c" />
@@ -159,6 +160,7 @@
     <ClCompile Include="WinSpyWindow.c" />
   </ItemGroup>
   <ItemGroup>
+    <ClInclude Include="AutoCompleteComboBox.h" />
     <ClInclude Include="BitmapButton.h" />
     <ClInclude Include="CaptureWindow.h" />
     <ClInclude Include="FindTool.h" />

src/winspy.vcxproj.filters

@@ -111,6 +111,9 @@
     <ClCompile Include="DisplayDpiInfo.c">
       <Filter>Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="AutoCompleteComboBox.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="BitmapButton.h">
@@ -140,6 +143,12 @@
     <ClInclude Include="resource\resource.h">
       <Filter>Header Files</Filter>
     </ClInclude>
+    <ClInclude Include="Poster.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="AutoCompleteComboBox.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ResourceCompile Include="resource\WinSpy.rc">