需要控制那些消息处理嵌入式输入法的问题？
小弟想做个Edit控件，在处理输入法时被卡住了。
输入法有两种状态嵌入式和非嵌入式，所知道的微软拼音和Google拼音支持内嵌输入。win10后感觉微软拼音蛮好用，所以没装其他输入法才发现这个问题。
主要差别：嵌入式能直接在编辑位置反应结果。
下面的动画是做的测试，在微软拼音输入时。无法显示嵌入的文本。
1、尝试设置输入法的字体，好像没用
LOGFONT lf;
//输入法字体样式
GetObject(hFont, sizeof(LOGFONT), &lf);
ImmSetCompositionFont(himc, &lf);
2、尝试增加插符号，也没效果
case WM_SETFOCUS:
CreateCaret(hWnd, NULL, 1, 20);
SetCaretPos(100 + textwidth, 100);
ShowCaret(hWnd);
return 0;
case WM_KILLFOCUS:
HideCaret(hWnd);
DestroyCaret();
return 0;
不知道是那个消息或方法控制嵌入式输入的状态。
需要处理和控制那些消息和方法，解决嵌入式输入法无法显示内容的问题？
【问题已经解决散分】
解决方法
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卡了半周时间，竟然发现是被一个return 给搞死，在检查帖子的时候才发现这里代码被坑了。
WM_IME_STARTCOMPOSITION 消息处理完成后一定要让系统继续处理这个消息，否则系统不会自动帮你绘制。
WM_IME_STARTCOMPOSITION
处理两个问题：
1、输入法显示的位置（ImmSetCompositionWindow）
2、内嵌状态下输入法绘制的字体（ImmSetCompositionFont）
和是否有插入符（caret）没有关系。
开发环境：
win10
VS 2015
下面是测试完整代码
新建一个标准C++工程，代码只有WndProc过程有改动。处理了WM_IME_STARTCOMPOSITION 消息
// imetest.cpp : Defines the entry point for the application.
//
#include "stdafx.h"
#include "imetest.h"
#define MAX_LOADSTRING 100
// Global Variables:
HINSTANCE hInst; // current instance
TCHAR szTitle[MAX_LOADSTRING]; // The title bar text
TCHAR szWindowClass[MAX_LOADSTRING]; // the main window class name
// Forward declarations of functions included in this code module:
ATOM MyRegisterClass(HINSTANCE hInstance);
BOOL InitInstance(HINSTANCE, int);
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
INT_PTR CALLBACK About(HWND, UINT, WPARAM, LPARAM);
int APIENTRY _tWinMain(_In_ HINSTANCE hInstance,
_In_opt_ HINSTANCE hPrevInstance,
_In_ LPTSTR lpCmdLine,
_In_ int nCmdShow)
{
UNREFERENCED_PARAMETER(hPrevInstance);
UNREFERENCED_PARAMETER(lpCmdLine);
// TODO: Place code here.
MSG msg;
HACCEL hAccelTable;
// Initialize global strings
LoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);
LoadString(hInstance, IDC_IMETEST, szWindowClass, MAX_LOADSTRING);
MyRegisterClass(hInstance);
// Perform application initialization:
if (!InitInstance(hInstance, nCmdShow))
{
return FALSE;
}
hAccelTable = LoadAccelerators(hInstance, MAKEINTRESOURCE(IDC_IMETEST));
// Main message loop:
while (GetMessage(&msg, NULL, 0, 0))
{
if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
return (int)msg.wParam;
}
//
// FUNCTION: MyRegisterClass()
//
// PURPOSE: Registers the window class.
//
ATOM MyRegisterClass(HINSTANCE hInstance)
{
WNDCLASSEX wcex;
wcex.cbSize = sizeof(WNDCLASSEX);
wcex.style = CS_HREDRAW | CS_VREDRAW;
wcex.lpfnWndProc = WndProc;
wcex.cbClsExtra = 0;
wcex.cbWndExtra = 0;
wcex.hInstance = hInstance;
wcex.hIcon = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_IMETEST));
wcex.hCursor = LoadCursor(NULL, IDC_ARROW);
wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
wcex.lpszMenuName = MAKEINTRESOURCE(IDC_IMETEST);
wcex.lpszClassName = szWindowClass;
wcex.hIconSm = LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_SMALL));
return RegisterClassEx(&wcex);
}
//
// FUNCTION: InitInstance(HINSTANCE, int)
//
// PURPOSE: Saves instance handle and creates main window
//
// COMMENTS:
//
// In this function, we save the instance handle in a global variable and
// create and display the main program window.
//
BOOL InitInstance(HINSTANCE hInstance, int nCmdShow)
{
HWND hWnd;
hInst = hInstance; // Store instance handle in our global variable
hWnd = CreateWindow(szWindowClass, szTitle, WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, NULL, NULL, hInstance, NULL);
if (!hWnd)
{
return FALSE;
}
ShowWindow(hWnd, nCmdShow);
UpdateWindow(hWnd);
return TRUE;
}
//
// FUNCTION: WndProc(HWND, UINT, WPARAM, LPARAM)
//
// PURPOSE: Processes messages for the main window.
//
// WM_COMMAND - process the application menu
// WM_PAINT - Paint the main window
// WM_DESTROY - post a quit message and return
//
//
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
PAINTSTRUCT ps;
HDC hdc;
RECT r;
SIZE sz;
COLORREF saveColor;
static TCHAR buffer[2048];
static int textlen = 0;
static int textwidth = 0;
static HFONT hFont = 0;
switch (message)
{
case WM_CREATE:
hFont = CreateFont(17, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, L"微软雅黑");
return 0;
case WM_PAINT:
hdc = BeginPaint(hWnd, &ps);
// 设置个可观察位置
SetRect(&r, 93, 100, 95, 120);
saveColor = SetBkColor(hdc, 0x00cccccc);
ExtTextOut(hdc, 0, 0, ETO_OPAQUE, &r, NULL, 0, NULL);
SetBkColor(hdc, saveColor);
// 清除绘制的字符串
SetRect(&r, 100, 100, 100 + textwidth + 100, 300);
ExtTextOut(hdc, 100, 100, ETO_OPAQUE, &r, NULL, 0, NULL);
// 绘制字符串
if (textlen)
{
SelectObject(hdc, (HFONT)hFont);
ExtTextOut(hdc, 100, 100, ETO_OPAQUE, NULL, buffer, textlen, NULL);
}
EndPaint(hWnd, &ps);
return 0;
case WM_SETFOCUS:
CreateCaret(hWnd, NULL, 1, 20);
SetCaretPos(100 + textwidth, 100);
ShowCaret(hWnd);
return 0;
case WM_KILLFOCUS:
HideCaret(hWnd);
DestroyCaret();
return 0;
case WM_CHAR:
if (wParam >= 0x20 && wParam != 0x7F)
{
buffer[textlen] = wParam;
textlen++;
}
else if (wParam == VK_BACK)
{
if (textlen) textlen--;
}
else
break;
// 获取字体宽度，
// 用来确定Caret的位置
if (hdc = GetDC(hWnd))
{
SelectObject(hdc, (HFONT)hFont);
GetTextExtentPoint32(hdc, buffer, textlen, &sz);
textwidth = sz.cx;
ReleaseDC(hWnd, hdc);
}
SetCaretPos(100 + textwidth, 100);
InvalidateRect(hWnd, NULL, FALSE);
return 1;
case WM_IME_STARTCOMPOSITION:
{
LOGFONT lf;
COMPOSITIONFORM cf;
HIMC himc = ImmGetContext(hWnd);
if (himc)
{
// 设置输入法显示位置。
cf.dwStyle = CFS_POINT;
cf.ptCurrentPos.y = 100;
cf.ptCurrentPos.x = 100 + textwidth;
ImmSetCompositionWindow(himc, &cf);
//输入法字体样式
GetObject(hFont, sizeof(LOGFONT), &lf);
ImmSetCompositionFont(himc, &lf);
ImmReleaseContext(hWnd, himc);
}
}
}
// return 0; // 这里要继续让系统处理消息，不能退出
break;
case WM_DESTROY:
DeleteObject(hFont);
PostQuitMessage(0);
return 0;
}
return DefWindowProc(hWnd, message, wParam, lParam);
}
// Message handler for about box.
INT_PTR CALLBACK About(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
UNREFERENCED_PARAMETER(lParam);
switch (message)
{
case WM_INITDIALOG:
return (INT_PTR)TRUE;
case WM_COMMAND:
if (LOWORD(wParam) == IDOK || LOWORD(wParam) == IDCANCEL)
{
EndDialog(hDlg, LOWORD(wParam));
return (INT_PTR)TRUE;
}
break;
}
return (INT_PTR)FALSE;
}
------解决思路----------------------
------解决思路----------------------
对了，我的控件TSF输入法出现在最左上方，请问是怎么回事呢.
