正常打开程序是矩形的窗口。

但是多次重复打开程序有机率变成老古懂的方形窗口求解。

#define WINVER 0x0A00
#define _WIN32_WINNT 0x0A00

#include <graphics.h>				// 绘图库头文件
#include <conio.h>					// 基本头文件
#include<algorithm>					// 针对设置该进程不受系统 DPI 设置影响 的头文件
#include <ShellScalingApi.h>		// 引用头文件
#pragma comment(lib, "Shcore.lib")	// 链接库文件

void lnitial_drawing()
{
	A:
	// 设置该进程不受系统 DPI 设置影响
	SetProcessDpiAwareness(PROCESS_PER_MONITOR_DPI_AWARE);
	system("mode con cols=27 lines=18 && color 8f");
	initgraph(230, 290, NOMINIMIZE | EX_SHOWCONSOLE);

	HWND hWnd = GetHWnd();
	// 获取窗口边框宽高
	RECT rcClient, rcWind;
	GetClientRect(hWnd, &rcClient);
	GetWindowRect(hWnd, &rcWind);
	int cx1 = ((rcWind.right - rcWind.left) - rcClient.right) / 2;
	int cy1 = ((rcWind.bottom - rcWind.top + GetSystemMetrics(SM_CYCAPTION)) - rcClient.bottom) / 2;

	HRGN rgn = CreateRoundRectRgn(1 + cx1, 0 + cy1, 215 + cx1, 290 + cy1, 20, 20);
	if (SetWindowRgn(hWnd, rgn, true)==0){	goto A;	}

	SetWindowPos(hWnd, HWND_TOPMOST,				// 置顶
	(GetSystemMetrics(SM_CXFULLSCREEN) - 230) / 2,
	(GetSystemMetrics(SM_CYFULLSCREEN) - 340) / 2,	// 坐标
	232, 340,										// 宽高
	SWP_SHOWWINDOW);								// 方式
	
	setbkcolor(RGB(62, 69, 89));
	setbkmode(TRANSPARENT);
	cleardevice();
	settextcolor(RGB(0, 132, 132));

	outtextxy(10, 10+35, L"1.重复打开这个程序");
	outtextxy(10, 30+35, L"2.窗口初始样式为矩形");
	outtextxy(10, 50+35, L"3.但会有机率把矩形边框");
	outtextxy(10, 70+35, L"4.变成复古XP的样式");
	outtextxy(10, 90+35, L"5.原因不明所以");
	outtextxy(10, 110 + 35, L"6.隶属于颜色诱捕子程序");
	outtextxy(10, 130 + 35, L"7.有趣的是当软件打开");
	outtextxy(10, 150 + 35, L"8.为矩形窗口时");
	outtextxy(10, 170 + 35, L"8.用截图软件会自动把这");
	outtextxy(10, 190 + 35, L"8.复古窗口范围为标出来");
}
void inigra()
{
	int x1 = 0, y1 = 0, x2 = 216, y2 = 30;
	setfillcolor(RGB(51, 51, 51));
	setlinecolor(RGB(166, 166, 166));
	solidrectangle(x1, y1 - 5, x2, y2);
	line(x1+2, y2 , x2-4, y2 );
	settextcolor(RGB(206, 238, 255));
	outtextxy(10, 10, L"矩形窗口标题栏");
	
	setlinecolor(RGB(206, 238, 255));
	circle(200,15,10);
	circle(200, 15, 9);
	
	line(200, 15,200+7 , 15-7);
	line(200, 15 , 200+7, 15+7);
	line(200, 15, 200-7,15+7 );
	line(200, 15, 200-7,15-7 );

	rectangle(165+2,5+2,185-2,25-2);
	rectangle(165 + 2-1, 5 + 2-1, 185 - 2+1, 25 - 2+1);
	rectangle(140-1, 12-1, 160+1, 18+1);
	rectangle(140, 12, 160, 18);

}
int main()
{
	lnitial_drawing();
	inigra();
	BOOL ZEOR = true;
	HWND h1;
	h1 = GetHWnd();
	
	while (ZEOR)
	{
		POINT pt11;
		GetCursorPos(&pt11);
		ScreenToClient(h1, &pt11);
		while ((GetAsyncKeyState(VK_LBUTTON)) && ZEOR)
		{
			if ((pt11.x > 140 && pt11.y > 5 && pt11.x < 207 && pt11.y < 25))
			{	
				ZEOR = false;	// rectangle(140,5,210,25);
			}
			if ((pt11.x > 0 && pt11.y > 0 && pt11.x < 140 && pt11.y < 30))
			{		
				while ((GetAsyncKeyState(VK_LBUTTON)))

				{
					RECT rcClient, rcWind;
					GetClientRect(h1, &rcClient);
					GetWindowRect(h1, &rcWind);
					int cx = ((rcWind.right - rcWind.left) - rcClient.right) / 2;
					int cy = ((rcWind.bottom - rcWind.top + GetSystemMetrics(SM_CYCAPTION)) - rcClient.bottom) / 2;

					POINT pt2;
					GetCursorPos(&pt2);
					HDC hDC0 = GetDC(NULL);

					MoveWindow(h1, pt2.x - pt11.x - cx, pt2.y - pt11.y - cy, 245, 340, true);
				}
			}
		}
		}
	closegraph();
	return 0;
	}

经过时间探索改良版或者叫修复版，大量的减少重复打开程序有机率变成老古懂的方形窗口的机率

#define WINVER 0x0A00
#define _WIN32_WINNT 0x0A00
// 修复改良版
#include <graphics.h>				// 绘图库头文件
#include <conio.h>					// 基本头文件
#include<algorithm>					// 针对设置该进程不受系统 DPI 设置影响 的头文件
#include <ShellScalingApi.h>		// 引用头文件
#pragma comment(lib, "Shcore.lib")	// 链接库文件

void lnitial_drawing()
{
	// 设置该进程不受系统 DPI 设置影响
	SetProcessDpiAwareness(PROCESS_PER_MONITOR_DPI_AWARE);
	system("mode con cols=27 lines=18 && color 8f");
	initgraph(230, 290, NOMINIMIZE | EX_SHOWCONSOLE);

	HWND hWnd = GetHWnd();

	SetWindowLong(hWnd, GWL_STYLE,
		GetWindowLong(hWnd, GWL_STYLE) & ~(WS_CAPTION | WS_DLGFRAME | WS_BORDER));
	SetWindowLong(hWnd, GWL_EXSTYLE,
		GetWindowLong(hWnd, GWL_EXSTYLE) &
		~(WS_EX_WINDOWEDGE | WS_EX_CLIENTEDGE | WS_EX_DLGMODALFRAME));

	SetWindowPos(hWnd, HWND_TOPMOST, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE | SWP_FRAMECHANGED);

	HRGN rgn = CreateRoundRectRgn(0, 0, 230, 290, 20, 20);
	SetWindowRgn(hWnd, rgn, true);

	setbkcolor(RGB(246, 209, 195));


	setbkmode(TRANSPARENT);
	cleardevice();
	settextcolor(RGB(0, 132, 132));

	outtextxy(10, 10 + 35, L"1.重复打开这个程序");
	outtextxy(10, 30 + 35, L"2.窗口初始样式为矩形");
	outtextxy(10, 50 + 35, L"3.但会有机率把矩形边框");
	outtextxy(10, 70 + 35, L"4.变成复古XP的样式");
	outtextxy(10, 90 + 35, L"5.原因不明所以");
	outtextxy(10, 110 + 35, L"6.隶属于颜色诱捕子程序");
	outtextxy(10, 130 + 35, L"7.有趣的是当软件打开");
	outtextxy(10, 150 + 35, L"8.为矩形窗口时");
	outtextxy(10, 170 + 35, L"8.用截图软件会自动把这");
	outtextxy(10, 190 + 35, L"8.复古窗口范围为标出来");
	outtextxy(10, 210 + 35, L"9.以上问题均以修复");
}
void inigra()
{
	int x1 = 0, y1 = 0, x2 = 228, y2 = 30;
	setfillcolor(RGB(212, 95, 102));

	setlinecolor(RGB(131, 43, 50));
	solidrectangle(x1, y1 - 5, x2, y2);
	line(x1, y2, x2, y2);


	settextcolor(RGB(0, 0, 0));
	outtextxy(10, 10, L"修复版矩形窗口");

	setlinecolor(RGB(211, 211, 211));
	
	setfillcolor(RGB(197, 85, 89));
	fillcircle(200 + 10, 15, 10);
	fillcircle(200 + 10, 15, 10);

	setfillcolor(RGB(183, 183, 183));
	fillcircle(175 + 10, 15, 10);
	fillcircle(175 + 10, 15,10);

	setfillcolor(RGB(155, 203, 155));
	fillcircle(150 + 10, 15, 10);
	fillcircle(150 + 10, 15, 10);



}
int main()
{
	lnitial_drawing();
	inigra();
	BOOL ZEOR = true;
	HWND h1;
	h1 = GetHWnd();
	
	
	while (ZEOR)
	{
	
		POINT pt11;
		GetCursorPos(&pt11);
		ScreenToClient(h1, &pt11);
		while ((GetAsyncKeyState(VK_LBUTTON)) && ZEOR)
		{
			if ((pt11.x > 150 && pt11.y > 5 && pt11.x < 220 && pt11.y < 25))
			{
				ZEOR = false;	// rectangle(140,5,210,25);
			}
			if ((pt11.x > 0 && pt11.y > 0 && pt11.x < 140 && pt11.y < 30))
			{
				BeginBatchDraw();
				while ((GetAsyncKeyState(VK_LBUTTON)))

				{
					inigra();
					POINT pt2;
					GetCursorPos(&pt2);
					HDC hDC0 = GetDC(NULL);

					MoveWindow(h1, pt2.x - pt11.x, pt2.y - pt11.y, 245, 340, true);
					FlushBatchDraw();
				}
			}
			
		}
	}
	EndBatchDraw();
	closegraph();
	return 0;
}