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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                為了讓顏色的明度的區分度加強,對顏色對比進行了改進和調整: 先看改進結果: ![](https://box.kancloud.cn/81d100bc392b016fb0770e93e65f44b7_1064x730.jpg) `` 數值注釋如下: ![](https://box.kancloud.cn/aa7e63dfa17ad0d4b56353e46175c396_918x329.png) 代碼如下: ``` case WM_PAINT: { PAINTSTRUCT ps; HPEN hpen; // 畫筆 HDC hdc = BeginPaint(hWnd, &ps); // TODO: 在此處添加使用 hdc 的任何繪圖代碼... //渲染畫圖 MoveToEx(hdc, 0,0,NULL); int r = 0; int g = 0; int b = 0; int ray = 0; for (int i = 1; i < 999; ++i) { // 896; ++i) { //for100 //for (int i = 1; i < 1792; ++i) { //for100 if (0 == i) ray = 0; MoveToEx(hdc, i, 0,NULL); //暗灰 if ((0 < i) && (i <= 63) ) {//if110 ++ray; // 創建畫筆 hpen = CreatePen(PS_SOLID, 1, RGB(ray, ray, ray)); SelectObject(hdc, hpen); }//if110 //暗藍-藍 if ((64 <= i) && (i <= 191)) {//if120 ++ray; // 創建畫筆 hpen = CreatePen(PS_SOLID, 1, RGB(0,0, 128+(i-64) ) ); SelectObject(hdc, hpen); }//if120 //暗紅-紅 if ((192 <= i) && (i <= 319)) {//if120 //if ((384 < i) && (i <= 639)) {//if120 ++ray; // 創建畫筆 hpen = CreatePen(PS_SOLID, 1, 64+ RGB( (i - 192),0,0 )); SelectObject(hdc, hpen); }//if120 //暗綠色63種 if ((320 <= i) && (i <= 383)) {//if210 ++ray; // 創建畫筆 hpen = CreatePen(PS_SOLID, 1, RGB(0, 64 + (i - 64), 0)); SelectObject(hdc, hpen); }//if210 //暗紫色-品色(紅+藍) 127種 else if ((384 <= i) && (i <= 511)) {//else if210 //if ((384<= i) && (i <= 511)) {//if120 ++ray; // 創建畫筆 hpen = CreatePen(PS_SOLID, 1, RGB(128 + (i - 384), 127, 128+ (i - 384))); SelectObject(hdc, hpen); }//else if210 //暗紫色-品色(紅+藍) 127種 //明亮綠色 63種 if ((512 <= i) && (i <= 575)) {//if120 ++ray; // 創建畫筆 hpen = CreatePen(PS_SOLID, 1, RGB( 0+(i-512), 192+ (i - 512), 0 +(i-512) ) ); //0+(i-512)增加明度,讓亮綠更亮 SelectObject(hdc, hpen); }//if120 //青色-(藍+綠色) 127種 if (( 576 <= i) && (i <= 703)) {//if120 ++ray; // 創建畫筆 hpen = CreatePen(PS_SOLID, 1, RGB( 0+(i-576) , 128+(i - 576), 128+(i - 576) )); SelectObject(hdc, hpen); }//if120 //明黃色-(紅+綠色) 127種 if ((704 <= i) && (i <= 831)) {//if120 ++ray; // 創建畫筆 hpen = CreatePen(PS_SOLID, 1, RGB( 128+(i - 704), 128+(i - 704) ,0+(i-704 ) ) ); SelectObject(hdc, hpen); }//if120 //白色-(白色-高亮白) 64種……注解:再多就做 白切割 了…… if ((832 <= i) && (i <= 895)) {//if120 //if ((1664 <= i) ) {//if120 ++ray; // 創建畫筆 hpen = CreatePen(PS_SOLID, 1, RGB( 192+(i - 831), 192+(i - 831), 192+(i - 831))); SelectObject(hdc, hpen); }//if120 //黑色-(太高亮) 64種……注解:再多就做 黑切割 了…… if ((895 <= i)) {//if120 //if ((1664 <= i) ) {//if120 ++ray; // 創建畫筆 hpen = CreatePen(PS_SOLID, 1, RGB(0,0,0)); SelectObject(hdc, hpen); }//if120 // SelectObject(hdc, hpen); LineTo(hdc, 0, i); //LineTo(hdc, i, i); }//for100 // EndPaint(hWnd, &ps); } break; case WM_DESTROY: ```
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                              哎呀哎呀视频在线观看