程序代码：
#define _WIN32_WINNT 0x0501
#include <Windows.h>
#include <assert.h>
#include <math.h>
#define RAD 100
#define PI 3.14159265359
char *strClassName = "My Class";
HDC hDCMemory;
HBRUSH color_brush[4];
void CreateResources()
{
int i;
HDC hDCDisplay;
COLORREF colors[] =
{
RGB(255, 0, 0), RGB(255, 255, 0),
RGB(0, 255, 0), RGB(0, 0, 255)
};
for (i = 0; i < 4; i++)
color_brush[i] = CreateSolidBrush(colors[i]);
hDCDisplay = GetDC(NULL);
hDCMemory = CreateCompatibleDC(hDCDisplay);
SelectObject(hDCMemory,
(HGDIOBJ)CreateCompatibleBitmap(hDCDisplay, RAD * 2, RAD * 2));
ReleaseDC(NULL, hDCDisplay);
}
void ClearResources()
{
int i;
for (i = 0; i < 4; i++)
DeleteObject((HGDIOBJ)color_brush[i]);
DeleteObject(GetCurrentObject(hDCMemory, OBJ_BITMAP));
DeleteDC(hDCMemory);
}
void SetClientSize(HWND hWnd, int width, int height)
{
RECT wndRect, cntRect;
GetWindowRect(hWnd, &wndRect);
GetClientRect(hWnd, &cntRect);
InflateRect(&wndRect, (width - cntRect.right) / 2,
(height - cntRect.bottom) / 2);
SetWindowPos(hWnd, NULL, 0, 0, wndRect.right - wndRect.left,
wndRect.bottom - wndRect.top, SWP_NOZORDER | SWP_NOMOVE);
}
void DrawWindmill(HDC hdc, double angle)
{
int i;
RECT rect = {0, 0, RAD * 2, RAD * 2};
HGDIOBJ old_pen = SelectObject(hdc, GetStockObject(NULL_PEN));
HGDIOBJ old_brush = GetCurrentObject(hdc, OBJ_BRUSH);
FillRect(hdc, &rect, GetStockObject(WHITE_BRUSH));
for (i = 0; i < 4; i++, angle += PI / 2)
{
SelectObject(hdc, color_brush[i]);
Chord(hdc, RAD * (cos(angle) + 1) / 2,
RAD * (sin(angle) + 1) / 2,
RAD * (cos(angle) + 3) / 2,
RAD * (sin(angle) + 3) / 2,
RAD * (cos(angle) + 1),
RAD * (sin(angle) + 1), RAD, RAD);
}
SelectObject(hdc, old_brush);
SelectObject(hdc, old_pen);
}
LRESULT CALLBACK WndProc(HWND hWnd, UINT uMsg,
WPARAM wParam, LPARAM lParam)
{
static float angle = 0;
HDC hdc;
PAINTSTRUCT ps;
switch (uMsg)
{
case WM_ERASEBKGND:
return 0;
case WM_PAINT:
hdc = BeginPaint(hWnd, &ps);
DrawWindmill(hDCMemory, angle);
BitBlt(hdc, 0, 0, RAD * 2, RAD * 2, hDCMemory, 0, 0, SRCCOPY);
EndPaint(hWnd, &ps);
break;
case WM_LBUTTONDOWN:
uMsg = WM_NCLBUTTONDOWN;
break;
case WM_TIMER:
angle += PI / 180;
if (angle >= PI * 2) angle = 0;
InvalidateRect(hWnd, NULL, TRUE);
break;
case WM_SIZE:
SetClientSize(hWnd, RAD * 2, RAD * 2);
break;
case WM_CREATE:
RegisterHotKey(hWnd, 0x1234, MOD_WIN, VK_F12);
CreateResources();
SetTimer(hWnd, 1, 10, NULL);
break;
case WM_HOTKEY:
case WM_DESTROY:
UnregisterHotKey(hWnd, 0x1234);
ClearResources();
PostQuitMessage(0);
break;
}
return DefWindowProc(hWnd, uMsg, wParam, lParam);
}
int CALLBACK WinMain(HINSTANCE hInst, HINSTANCE hPreInst,
LPSTR strCmdLine, int nCmdShow)
{
MSG msg;
HWND hWnd;
WNDCLASS wc = {CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS,
WndProc, 0, 0, hInst,
LoadIcon(NULL, IDI_APPLICATION), LoadCursor(NULL, IDC_ARROW),
(HBRUSH)GetStockObject(WHITE_BRUSH), NULL, strClassName
};
RegisterClass(&wc);
hWnd = CreateWindowEx(WS_EX_LAYERED | WS_EX_TOPMOST
| WS_EX_TRANSPARENT | WS_EX_TOOLWINDOW,
strClassName, "My Window",
WS_POPUP,
CW_USEDEFAULT, CW_USEDEFAULT, 0, 0,
NULL, NULL, hInst, NULL);
SetLayeredWindowAttributes(hWnd, RGB(255, 255, 255),
128, LWA_COLORKEY | LWA_ALPHA);
ShowWindow(hWnd, nCmdShow);
while (GetMessage(&msg, NULL, 0, 0))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
return msg.wParam;
}
/* cc_flags = -mwindows */ // 这一行是为了VIM自动添加编译选项
代码不长，不过用来测试自动补全，自动完成，TAB提示和函数原型提示，还有自动编译器选项添加还是完全够了的……VIM真是好东西…………
懂VIM的，问个问题。怎么能在匹配一个模式的时候，同时去掉这个匹配呢？
比如，要求匹配/*...*/，但是不能匹配'..../*...*/....'
我是这么做的：/'\%(''\|[^']\)*'\zs\|\/\*.*\*\/
但是这样的确是去掉了第一个'...'的匹配，但是匹配了'...'的后一个字符……我不知道这是不是VIM的Bug……
/\%('\%(''\|[^']\)*'\)\@=\|\/\*.*\*\/
这个也不行，在匹配/*...*/的同时，匹配了'...'的第一个引号“'”。
难道VIM无法处理这种情况了吗？希望知道的可以告知一下…………
windmill.rar
(7.7 KB)
2008-10-18 02:21
